OVERALL
SPECS
VS AVERAGE
REVIEWS
ALTERNATIVES

Xiaomi Redmi 15 5G (4GB + 128GB) Review | 197 Data compared

double-arrow
  • Avg. price: ~£130
  • RAM capacity: 4 GB
  • Internal storage: 128 GB
  • Screen size: 6.9 inches
  • Main camera megapixels: 50 MP & 2 MP

Xiaomi Redmi 15 5G (4GB + 128GB) review. Compare 197 technical specifications and user reviews to see how it ranks among smartphones and if it's worth buying.

7.0

Overall score

What it is: An overall evaluation of the smartphone's quality, based on technical analyses and user reviews.

When it matters: When you need a quick reference to identify the best smartphones on the market.

Score components:

90.0%

6.8

Technical Score

10.0%

9.1

User score

Very good
6.8

Technical Score

What it is: An assessment of the smartphone's technical performance, covering eight key areas: performance & hardware, software, camera, connectivity, display, battery, audio, and design.

When it matters: When you want to compare smartphones based on technical performance and available features.

Score components:

25.0%

6.5

Performance & Hardware

18.0%

5.8

Camera

15.0%

6.1

Display

15.0%

7.5

Battery

10.0%

8.3

Software

10.0%

7.8

Connectivity

4.0%

6.8

Audio

3.0%

6.6

Design

Good
9.1

User score

What it is: A rating that combines user reviews and the total number of reviews received by the smartphone

When it matters: When you want to know how a smartphone handles daily tasks and how reliable it remains over time according to user feedback.

Score components:

70.0%

8.7

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.2
(49)
United States
Amazon_logo.png
3.7
(14)

(Reviews last updated: August 2026)

Exceptional
    • xiaomi-redmi-15-5g-4gb-128gb
    • xiaomi-redmi-15-5g-4gb-128gb
    • xiaomi-redmi-15-5g-4gb-128gb
    • xiaomi-redmi-15-5g-4gb-128gb
    • xiaomi-redmi-15-5g-4gb-128gb
    • xiaomi-redmi-15-5g-4gb-128gb
    • xiaomi-redmi-15-5g-4gb-128gb
    • xiaomi-redmi-15-5g-4gb-128gb
    • xiaomi-redmi-15-5g-4gb-128gb
    xiaomi-redmi-15-5g-4gb-128gb
    xiaomi-redmi-15-5g-4gb-128gb
    xiaomi-redmi-15-5g-4gb-128gb
    xiaomi-redmi-15-5g-4gb-128gb
    xiaomi-redmi-15-5g-4gb-128gb
    xiaomi-redmi-15-5g-4gb-128gb
    xiaomi-redmi-15-5g-4gb-128gb
    xiaomi-redmi-15-5g-4gb-128gb
    xiaomi-redmi-15-5g-4gb-128gb

    Best prices

    Best rankings

    ?

    Available: ranking among products currently available (including other versions of this product).
    All: ranking among all products in the database.

    Available versions:
    4GB + 128GB8GB + 256GB£?

    Verdict

    The Xiaomi Redmi 15 5G (4GB + 128GB) is a budget-friendly smartphone focused on an exceptional battery and large display, featuring a massive 7,000 mAh silicon carbon battery with 33W fast charging and 18W reverse charging support, a large 6.9-inch FHD+ IPS LCD display with a 144Hz adaptive refresh rate, and is powered by the Snapdragon 6s Gen 3 processor. Key benefits include the impressive multi-day battery life, smooth display, decent 50MP AI main camera for daylight photos, and useful inclusions like an IP64 rating, a charger in the box, and an IR blaster. However, notable drawbacks include its bulky size and weight which make one-handed use difficult, the lack of an AMOLED display and HDR support for streaming, a single mono speaker, and weak camera performance in low-light conditions.

    Technical Specifications of smartphone Xiaomi Redmi 15 5G (4GB + 128GB)

    Technical Score

    What it is: An assessment of the smartphone's technical performance, covering eight key areas: performance & hardware, software, camera, connectivity, display, battery, audio, and design.

    When it matters: When you want to compare smartphones based on technical performance and available features.

    Score components:

    25.0%

    6.5

    Performance & Hardware

    18.0%

    5.8

    Camera

    15.0%

    6.1

    Display

    15.0%

    7.5

    Battery

    10.0%

    8.3

    Software

    10.0%

    7.8

    Connectivity

    4.0%

    6.8

    Audio

    3.0%

    6.6

    Design

    6.8
    Xiaomi Redmi 15 5G (4GB + 128GB) has a technical score of 6.79 points, which is lower than 66.3% of smartphones.
    User score

    What it is: A rating that combines user reviews and the total number of reviews received by the smartphone

    When it matters: When you want to know how a smartphone handles daily tasks and how reliable it remains over time according to user feedback.

    Score components:

    70.0%

    8.7

    User reviews

    30.0%

    10

    Popularity

    User score:
    United Kingdom
    amazon
    4.2
    (49)
    United States
    Amazon_logo.png
    3.7
    (14)

    (Reviews last updated: August 2026)

    9.1
    Xiaomi Redmi 15 5G (4GB + 128GB) has a user score of 9.11 points, which is higher than 87.7% of smartphones.
    Popularity
    What it is: An indicator based on the number of reviews received by the smartphone.
    When it matters: When you prefer to purchase a product chosen and reviewed by many other consumers.
    10
    Xiaomi Redmi 15 5G (4GB + 128GB) has a popularity of 10 points, which is higher than 75.2% of products in this category.
    Ratio quality/price

    What it is: An indicator that combines the smartphone's overall rating with its cost.

    When it matters: When you are looking for a smartphone with a good balance between quality and price.

    Score components:

    60.0%

    7.0

    Overall score

    40.0%

    9.8

    Price

    7.9
    Xiaomi Redmi 15 5G (4GB + 128GB) has a quality-to-price ratio of 7.9 points, which is higher than 62.8% of products in this category.
    Brand name
    What it is: The manufacturer or brand under which the smartphone is marketed and sold.
    When it matters: When you prefer a specific ecosystem, support network, or design philosophy.

    Importance: MEDIUM

    Xiaomi
    Processor model
    What it is: The central System-on-Chip (SoC) that houses the CPU, GPU, modem, and other core processing components.
    When it matters: When you want to know the specific engine powering your device's speed and features.

    Importance: HIGH

    Qualcomm Snapdragon 6s Gen 3
    Xiaomi Redmi 15 5G (4GB + 128GB) uses the Qualcomm Snapdragon 6s Gen 3 processor model which is slower than processors in 52% of smartphones and equal to processors in 0.6% of smartphones.
    RAM capacity
    What it is: The amount of volatile memory available for running apps and multitasking.
    When it matters: When you use multiple apps at once or want smoother multitasking without reloads.

    Importance: HIGH

    Good value: >12 GB

    4 GB
    Xiaomi Redmi 15 5G (4GB + 128GB) has a RAM capacity of 4 GB which is smaller than the RAM capacity of 82.7% of smartphones and equal to that of 14% of smartphones.
    Internal storage
    What it is: The total built-in space available for apps, media, and files.
    When it matters: When you keep large libraries of photos, videos, and apps directly on your device.

    Importance: HIGH

    Good value: >256 GB

    128 GB
    Xiaomi Redmi 15 5G (4GB + 128GB) has an internal storage capacity of 128 GB which is smaller than the storage of 61.2% of smartphones and equal to that of 28.4% of smartphones.
    CPU boost clock speed
    What it is: The maximum speed the processor can achieve temporarily under heavy load.
    When it matters: When you run demanding apps or games that require short bursts of peak performance.

    Importance: MEDIUM

    Good value: >3.2 GHz

    2.3 GHz
    The CPU boost clock speed of Xiaomi Redmi 15 5G (4GB + 128GB) is 2.3 GHz which is lower than the boost speed of 63.9% of smartphones and equal to that of 4.3% of smartphones.
    Show more
    Operating system
    What it is: The primary system software that manages the smartphone's hardware and software resources.
    When it matters: When you have a preference for the user interface and app ecosystem.

    Importance: HIGH

    Android
    Xiaomi Redmi 15 5G (4GB + 128GB) uses the Android operating system, which outperforms that of 1% of smartphones.
    Android 15 (HyperOS 2.0)
    Android version
    What it is: The specific generation number of the Android operating system installed on the device.
    When it matters: When you want to ensure app compatibility and access to the latest software features.

    Importance: LOW

    Android 15
    Xiaomi Redmi 15 5G (4GB + 128GB) runs Android version Android 15 which is newer than that found in 70.6% of smartphones and equal to that in 25.1% of smartphones.
    Direct OS updates
    What it is: Indicates whether the device receives operating system updates directly from the manufacturer or Google, ensuring timely security and feature updates.
    When it matters: When you want the fastest access to new features and security patches.

    Importance: HIGH

    no
    Xiaomi Redmi 15 5G (4GB + 128GB) does not receive direct OS updates. 20.5% of smartphones receive direct updates.
    Open-source OS
    What it is: Shows whether the device’s operating system is based on open-source code, allowing community contributions and greater transparency.
    When it matters: When you value transparency and potential community-driven modifications.

    Importance: LOW

    yes
    Xiaomi Redmi 15 5G (4GB + 128GB) uses an open-source OS. 94.6% of smartphones use an open-source OS.
    Dark mode
    What it is: A display option that uses dark backgrounds to reduce eye strain and save battery on OLED screens.
    When it matters: When you want to reduce eye strain at night or save battery on OLED screens.

    Importance: LOW

    yes
    Xiaomi Redmi 15 5G (4GB + 128GB) offers dark mode. 95.8% of smartphones support this feature.
    Show more
    Multi-lens main camera
    What it is: Indicates that the rear camera system includes multiple lenses (e.g., wide, ultra-wide, telephoto) for versatile shooting options.
    When it matters: When you want versatility to shoot wide landscapes, standard shots, and zoomed details.

    Importance: MEDIUM

    yes
    Xiaomi Redmi 15 5G (4GB + 128GB) includes a multi-lens main camera system. 93.7% of smartphones include multi-lens setups.
    Main camera megapixels
    What it is: The resolution of the primary rear camera sensor, measured in millions of pixels (MP). Higher megapixels can capture more detail.
    When it matters: When you want to capture high-resolution images that can be cropped or printed large.

    Importance: HIGH

    Good value: >50 MP

    50 MP & 2 MP
    Xiaomi Redmi 15 5G (4GB + 128GB) has a main camera resolution of 50 MP & 2 MP MP which is lower than that of 57.5% of smartphones and equal to that of 12.9% of smartphones.
    Main camera aperture
    What it is: The size of the lens opening (f-stop) that controls light entry. A lower f-number indicates a wider aperture, allowing better low-light shots.
    When it matters: When you want better low-light performance or a natural background blur effect.

    Importance: HIGH

    f/1.8
    Xiaomi Redmi 15 5G (4GB + 128GB) has a main camera aperture of f/1.8 which is narrower than that of 71.8% of smartphones and equal to that of 5% of smartphones.
    Main camera sensor area
    What it is: The total physical surface area of the camera sensor (calculated by multiplying the number of megapixels by the square of the individual pixel size). A larger area captures more light, resulting in better night photos and less digital noise.
    When it matters: When you want to capture clear, detailed photos in low-light conditions with minimal grain and achieve a natural, professional-looking background blur for portraits.

    Importance: HIGH

    Good value: >60

    18.6 mm²
    Xiaomi Redmi 15 5G (4GB + 128GB) has a main camera sensor area of 18.6 mm² which is smaller than the main camera sensor area of 91.1% of smartphones and equal to that of 1.4% of smartphones.
    Main camera pixel size
    What it is: The physical size of individual pixels on the camera sensor, measured in micrometers. Larger pixels typically capture more light for better low-light performance.
    When it matters: When you shoot in low light and want reduced noise in your photos.

    Importance: MEDIUM

    Good value: ≥1.2 µm

    0.61 µm
    Xiaomi Redmi 15 5G (4GB + 128GB) has a main camera pixel size of 0.61 µm which is smaller than in 93.8% of smartphones and equal to the size in 2.3% of smartphones.
    Show more
    Number of SIM slots
    What it is: The number of physical SIM cards or eSIM profiles the device can support simultaneously.
    When it matters: When you need to manage two different phone numbers or travel internationally with a local SIM.

    Importance: MEDIUM

    Good value: ≥2

    2
    Xiaomi Redmi 15 5G (4GB + 128GB) has 2 SIM slots, which is more than in 3.8% of smartphones and equal to the number in 96.1% of smartphones.
    2 Nano SIMs (Hybrid slot: SIM or microSD, no eSIM support)
    Cellular module
    What it is: The hardware component capable of connecting to mobile cellular networks for voice and data.
    When it matters: When you need to stay connected to calls and internet away from Wi-Fi.

    Importance: LOW

    yes
    Xiaomi Redmi 15 5G (4GB + 128GB) includes a cellular module. 100% of smartphones include cellular modules.
    5G connectivity
    What it is: Support for the fifth generation of mobile network technology, offering significantly faster data speeds and lower latency.
    When it matters: When you need the fastest possible mobile data speeds for streaming and downloading on the go.

    Importance: MEDIUM

    yes
    Xiaomi Redmi 15 5G (4GB + 128GB) supports 5G connectivity. 66.9% of smartphones support 5G.
    LTE support
    What it is: Support for Long-Term Evolution (4G) networks, providing high-speed mobile data.
    When it matters: When you need reliable mobile internet coverage in areas where 5G isn't available.

    Importance: HIGH

    yes
    Xiaomi Redmi 15 5G (4GB + 128GB) supports LTE. 99.7% of smartphones include LTE connectivity.
    Wi-Fi connectivity
    What it is: The ability to connect to wireless local area networks for internet access and local networking.
    When it matters: When you want to save mobile data and connect to home or public networks.

    Importance: HIGH

    yes
    Xiaomi Redmi 15 5G (4GB + 128GB) supports Wi-Fi connectivity. 100% of smartphones offer Wi-Fi support.
    Show more
    Screen size
    What it is: The physical diagonal measurement of the display area, usually expressed in inches.
    When it matters: When you choose between a compact phone for one-handed use or a large screen for media.

    Importance: MEDIUM

    Good value: ≥6.6 inches

    6.9 inches
    Xiaomi Redmi 15 5G (4GB + 128GB) has a screen size of 6.9 inches which is larger than the screens of 93.8% of smartphones and equal to those of 2.6% of smartphones.
    Screen resolution
    What it is: The total number of pixels displayed on the screen, expressed as width x height, determining sharpness.
    When it matters: When you want crisp text and sharp details in photos and videos.

    Importance: HIGH

    1080 x 2340 px
    Xiaomi Redmi 15 5G (4GB + 128GB) has a screen resolution of 1080x2340 px which is lower than that of 68.4% of smartphones and equal to that of 6.1% of smartphones.
    Pixel density
    What it is: The concentration of pixels on the display, measured in pixels per inch (PPI), affecting image clarity.
    When it matters: When you want the image to look perfectly smooth with no visible pixels.

    Importance: HIGH

    Good value: >400 ppi

    374 ppi
    Xiaomi Redmi 15 5G (4GB + 128GB) has a pixel density of 374 ppi which is lower than that of 75.1% of smartphones and equal to that of 0.6% of smartphones.
    Display type
    What it is: The specific technology used for the screen panel (e.g., OLED, IPS LCD), influencing contrast, color, and efficiency.
    When it matters: When you care about vibrant colors, deep blacks, and battery efficiency.

    Importance: HIGH

    IPS LCD
    Xiaomi Redmi 15 5G (4GB + 128GB) uses a IPS LCD display type. 0% of smartphones use this display technology.
    Refresh rate
    What it is: The number of times per second the display updates the image, measured in Hertz (Hz); higher rates offer smoother motion.
    When it matters: When you want scrolling to feel fluid and games to look smoother.

    Importance: HIGH

    Good value: ≥120 Hz

    144 Hz
    Xiaomi Redmi 15 5G (4GB + 128GB) supports a refresh rate of 144 Hz which is higher than in 89.9% of smartphones and equal to that in 8.5% of smartphones.
    Show more
    Battery capacity
    What it is: The amount of electric charge the battery can hold, measured in milliampere-hours (mAh).
    When it matters: When you want a general idea of how large the battery is physically.

    Importance: HIGH

    Good value: >5000 mAh

    7,000 mAh
    Xiaomi Redmi 15 5G (4GB + 128GB) has a battery capacity of 7,000 mAh which is larger than the batteries in 86% of smartphones and equal to those in 4.8% of smartphones.
    Charging speed
    What it is: The maximum power input supported for wired charging, measured in Watts (W).
    When it matters: When you are in a rush and need to top up your battery quickly.

    Importance: HIGH

    Good value: >60 W

    33 W
    Xiaomi Redmi 15 5G (4GB + 128GB) supports charging speeds of 33 W which is faster than in 38.9% of smartphones and equal to speeds in 12% of smartphones.
    Fast charging
    What it is: In the context of modern electronics, "Fast Charging" refers to any technology that delivers power significantly higher than the traditional USB baseline. While the industry standard for a basic charger is 5W (5V at 1A), a charger is generally classified as a fast charger if it provides at least 18W of power.
    When it matters: When you want to minimize the time your phone spends tethered to a wall outlet.

    Importance: MEDIUM

    yes
    Xiaomi Redmi 15 5G (4GB + 128GB) supports fast charging. 93.1% of smartphones support fast charging.
    GSMArena full wired charge time
    What it is: The time taken to charge the battery from 0% to 100% using the bundled or recommended charger, as measured by GSMArena.
    When it matters: When you want to know exactly how long it takes to charge from 0 to 100% in real-world tests.

    Importance: MEDIUM

    Good value: <45 min

    108 min
    Xiaomi Redmi 15 5G (4GB + 128GB) reaches a full wired charge in 108 min which is slower than 87.7% of smartphones and equal to the time of 0.2% of smartphones.
    Wireless charging
    What it is: The ability to charge the battery without cables by placing the device on a compatible charging pad.
    When it matters: When you prefer the convenience of dropping your phone on a pad without fumbling with cables.

    Importance: MEDIUM

    no
    Xiaomi Redmi 15 5G (4GB + 128GB) does not support wireless charging. 25.3% of smartphones support wireless charging.
    Show more
    Stereo speakers
    What it is: A setup involving two or more speakers to create a left-right audio separation for immersive sound.
    When it matters: When you watch videos or play games without headphones and want immersive sound.

    Importance: MEDIUM

    no
    Xiaomi Redmi 15 5G (4GB + 128GB) does not include stereo speakers. 64.5% of smartphones provide stereo audio.
    3.5 mm headphone jack
    What it is: A standard analog audio port for connecting wired headphones or auxiliary cables.
    When it matters: When you prefer using traditional wired headphones without dongles or adapters.

    Importance: LOW

    yes
    Xiaomi Redmi 15 5G (4GB + 128GB) includes a 3.5 mm headphone jack. 45.3% of smartphones still offer this port.
    Number of microphones
    What it is: The total count of microphones on the device, used for audio recording, noise cancellation, and voice isolation.
    When it matters: When you want clear audio recording and better noise cancellation during calls.

    Importance: MEDIUM

    Good value: ≥3

    ?
    FM radio
    What it is: A built-in receiver allowing users to listen to local FM radio stations using wired headphones as an antenna.
    When it matters: When you want to listen to local radio stations without using mobile data.

    Importance: LOW

    yes
    Xiaomi Redmi 15 5G (4GB + 128GB) includes an FM radio. 33.7% of smartphones offer FM radio functionality.
    aptX Lossless
    What it is: A Bluetooth technology designed to deliver CD-quality audio without data loss during transmission.
    When it matters: When you demand CD-quality audio over Bluetooth with no loss of detail.

    Importance: LOW

    no
    Xiaomi Redmi 15 5G (4GB + 128GB) does not support aptX Lossless. 12.9% of smartphones provide aptX Lossless.
    Show more
    Height
    What it is: The vertical dimension of the device.
    When it matters: When you are concerned about whether the phone will fit in your pocket or purse.

    Importance: LOW

    Good value: <162 mm

    169.48 mm
    Xiaomi Redmi 15 5G (4GB + 128GB) has a height of 169.48 mm which is taller than 87.1% of smartphones and equal to that of 0% of smartphones.
    Width
    What it is: The horizontal dimension of the device when held in portrait orientation.
    When it matters: When you care about how easy the phone is to grip and use with one hand.

    Importance: LOW

    Good value: <75 mm

    80.45 mm
    Xiaomi Redmi 15 5G (4GB + 128GB) has a width of 80.45 mm which is wider than 89.5% of smartphones and equal to that of 0% of smartphones.
    Thickness
    What it is: The depth of the device profile, excluding the camera bump unless specified.
    When it matters: When you prefer a sleek, slim profile that slides easily into tight pockets.

    Importance: LOW

    Good value: <8 mm

    8.4 mm
    Xiaomi Redmi 15 5G (4GB + 128GB) has a thickness of 8.4 mm which is thicker than 55.7% of smartphones and equal to that of 4.6% of smartphones.
    Weight
    What it is: The total mass of the smartphone, affecting how heavy it feels in the hand.
    When it matters: When you want a phone that feels light in your pocket or substantial in your hand.

    Importance: MEDIUM

    Good value: <190 g

    217 g
    Xiaomi Redmi 15 5G (4GB + 128GB) weighs 217 g which is heavier than 79.2% of smartphones and equal to the weight of 0.7% of smartphones.
    Device volume
    What it is: The calculated total volume of the device's physical body.
    When it matters: When you want to understand the overall physical bulk of the device.

    Importance: LOW

    Good value: <98cm³

    108,160 cm³
    Xiaomi Redmi 15 5G (4GB + 128GB) has a device volume of 108,160 cm³ which is larger than 80.5% of smartphones and equal to that of 0% of smartphones.
    Show more

    Xiaomi Redmi 15 5G (4GB + 128GB) vs the average smartphone

    • 40% larger battery capacity
      Xiaomi Redmi 15 5G (4GB + 128GB) has a larger battery capacity than the average smartphone (7,000 mAh vs 5,000 mAh). The average smartphone battery is 5,000 mAh.
      What it is: The amount of electric charge the battery can hold, measured in milliampere-hours (mAh).
      When it matters: When you want a general idea of how large the battery is physically.

      Importance: HIGH

      Good value: >5000 mAh

      Xiaomi Redmi 15 5G (4GB + 128GB) has a larger battery capacity than the average smartphone (7,000 mAh vs 5,000 mAh). The average smartphone battery is 5,000 mAh.7000 mAh vs 5000 mAh
    • 0.23 inches larger screen size
      Xiaomi Redmi 15 5G (4GB + 128GB) has a larger screen size than the average smartphone (6.9 inches vs 6.67 inches). The average smartphone screen is 6.67 inches.
      What it is: The physical diagonal measurement of the display area, usually expressed in inches.
      When it matters: When you choose between a compact phone for one-handed use or a large screen for media.

      Importance: MEDIUM

      Good value: ≥6.6 inches

      Xiaomi Redmi 15 5G (4GB + 128GB) has a larger screen size than the average smartphone (6.9 inches vs 6.67 inches). The average smartphone screen is 6.67 inches.6.9 inches vs 6.67 inches
    • 20% higher refresh rate
      Xiaomi Redmi 15 5G (4GB + 128GB) has a higher refresh rate than the average smartphone (144 Hz vs 120 Hz). The average smartphone refresh rate is 120 Hz.
      What it is: The number of times per second the display updates the image, measured in Hertz (Hz); higher rates offer smoother motion.
      When it matters: When you want scrolling to feel fluid and games to look smoother.

      Importance: HIGH

      Good value: ≥120 Hz

      Xiaomi Redmi 15 5G (4GB + 128GB) has a higher refresh rate than the average smartphone (144 Hz vs 120 Hz). The average smartphone refresh rate is 120 Hz.144 Hz vs 120 Hz
    • 30.8% higher DxOMark Mobile score
      Xiaomi Redmi 15 5G (4GB + 128GB) has a higher DxOMark Mobile score than the average smartphone (157 vs 120). The average smartphone scores 120.
      What it is: A widely recognized benchmark score that evaluates the overall image and video quality of the smartphone's rear camera system.
      When it matters: When you want an objective, standardized ranking of the camera's overall quality.

      Importance: MEDIUM

      Good value: >130

      Xiaomi Redmi 15 5G (4GB + 128GB) has a higher DxOMark Mobile score than the average smartphone (157 vs 120). The average smartphone scores 120.157 vs 120
    • 51.4% higher PCMark Work 3.0 battery benchmark
      Xiaomi Redmi 15 5G (4GB + 128GB) has a higher PCMark Work 3.0 battery benchmark score than the average smartphone (1,190 min vs 786 min). The average score is 786 min.
      What it is: A synthetic benchmark that measures battery life by simulating continuous productivity tasks until depletion.
      When it matters: When you want to compare battery endurance under continuous productivity workloads.

      Importance: MEDIUM

      Good value: >800

      Xiaomi Redmi 15 5G (4GB + 128GB) has a higher PCMark Work 3.0 battery benchmark score than the average smartphone (1,190 min vs 786 min). The average score is 786 min.1190 min vs 786 min
    • Higher on-device AI tier
      Xiaomi Redmi 15 5G (4GB + 128GB) runs on the productivity AI tier, while the average smartphone runs on fundamental, enabling stronger on-device AI features.
      AI Erase, AI Sky, Google Gemini integration
      What it is: This level indicates how advanced the phone's on-device AI processing is, from basic assistance to more autonomous agentic tasks. A higher level usually enables faster, more private features such as live translation, writing help, and smarter photo edits without relying entirely on cloud processing.
      When it matters: When you travel or work in multiple languages and want instant translation, summarization, or writing help even with weak signal, this level determines how capable those on-device AI tools are.

      Importance: MEDIUM

      Xiaomi Redmi 15 5G (4GB + 128GB) runs on the productivity AI tier, while the average smartphone runs on fundamental, enabling stronger on-device AI features.productivity vs fundamental
    • Includes crash detection
      Xiaomi Redmi 15 5G (4GB + 128GB) features crash detection, the average smartphone does not. 5.6% of smartphones include automatic crash detection.
      What it is: A safety feature that uses sensors to detect a vehicle accident and automatically call emergency services.
      When it matters: When you want your phone to automatically call for help in a severe car accident.

      Importance: LOW

      Xiaomi Redmi 15 5G (4GB + 128GB) features crash detection, the average smartphone does not. 5.6% of smartphones include automatic crash detection.
    • Supports aptX Adaptive
      Xiaomi Redmi 15 5G (4GB + 128GB) supports aptX Adaptive, the average smartphone does not. 34.3% of smartphones include aptX Adaptive support.
      What it is: A Bluetooth codec that dynamically adjusts bitrate to balance audio quality and connection stability.
      When it matters: When you want audio that automatically balances quality and stability based on your environment.

      Importance: MEDIUM

      Xiaomi Redmi 15 5G (4GB + 128GB) supports aptX Adaptive, the average smartphone does not. 34.3% of smartphones include aptX Adaptive support.
    • 14.3% higher maximum RAM
      Xiaomi Redmi 15 5G (4GB + 128GB) supports more maximum RAM than the average smartphone (16 GB vs 14 GB). The average smartphone supports 14 GB RAM.
    • 3% higher PCMark Work 3.0 Performance benchmark
      Xiaomi Redmi 15 5G (4GB + 128GB) has a higher PCMark Work 3.0 performance score than the average smartphone (11,108 vs 10,783). The average score is 10,783.
    • Higher on-device AI tier
      Xiaomi Redmi 15 5G (4GB + 128GB) runs on the productivity AI tier, while the average smartphone runs on fundamental, enabling stronger on-device AI features.
    • Supports fast boot
      Xiaomi Redmi 15 5G (4GB + 128GB) supports fast boot, the average smartphone does not. 22.4% of smartphones include fast boot capabilities.
    • Includes cross-site tracking protection
      Xiaomi Redmi 15 5G (4GB + 128GB) supports cross-site tracking prevention, the average smartphone does not. 32.2% of smartphones include this feature.
    • Newer Android version
      Xiaomi Redmi 15 5G (4GB + 128GB) features a newer Android version than the average smartphone (Android 15 vs Android 14). The average version is Android 14.
    • 30.8% higher DxOMark Mobile score
      Xiaomi Redmi 15 5G (4GB + 128GB) has a higher DxOMark Mobile score than the average smartphone (157 vs 120). The average smartphone scores 120.
    • Supports RAW photo capture
      Xiaomi Redmi 15 5G (4GB + 128GB) supports RAW photo capture, the average smartphone does not. 37.1% of smartphones allow RAW files.
    • Wider front camera aperture
      Xiaomi Redmi 15 5G (4GB + 128GB) has a wider front camera aperture than the average smartphone (f/2.0 vs f/2.2). The average aperture is f/2.2.
    • Allows manual shutter speed
      Xiaomi Redmi 15 5G (4GB + 128GB) allows manual shutter speed control, the average smartphone does not. 29.7% of smartphones include this.
    • Includes crash detection
      Xiaomi Redmi 15 5G (4GB + 128GB) features crash detection, the average smartphone does not. 5.6% of smartphones include automatic crash detection.
    • Has an infrared sensor
      Xiaomi Redmi 15 5G (4GB + 128GB) includes an infrared sensor, the average smartphone does not. 33.3% of smartphones feature an IR blaster.
    • 0.23 inches larger screen size
      Xiaomi Redmi 15 5G (4GB + 128GB) has a larger screen size than the average smartphone (6.9 inches vs 6.67 inches). The average smartphone screen is 6.67 inches.
    • 20% higher refresh rate
      Xiaomi Redmi 15 5G (4GB + 128GB) has a higher refresh rate than the average smartphone (144 Hz vs 120 Hz). The average smartphone refresh rate is 120 Hz.
    • 20% higher touch sampling rate
      Xiaomi Redmi 15 5G (4GB + 128GB) has a higher touch sampling rate than the average smartphone (288 Hz vs 240 Hz). The average touch sampling rate is 240 Hz.
    • 40% larger battery capacity
      Xiaomi Redmi 15 5G (4GB + 128GB) has a larger battery capacity than the average smartphone (7,000 mAh vs 5,000 mAh). The average smartphone battery is 5,000 mAh.
    • 51.4% higher PCMark Work 3.0 battery benchmark
      Xiaomi Redmi 15 5G (4GB + 128GB) has a higher PCMark Work 3.0 battery benchmark score than the average smartphone (1,190 min vs 786 min). The average score is 786 min.
    • Supports aptX Adaptive
      Xiaomi Redmi 15 5G (4GB + 128GB) supports aptX Adaptive, the average smartphone does not. 34.3% of smartphones include aptX Adaptive support.
    • Has FM radio
      Xiaomi Redmi 15 5G (4GB + 128GB) features an FM radio, the average smartphone does not. 33.7% of smartphones include an FM tuner.
    • Has a 3.5 mm headphone jack
      Xiaomi Redmi 15 5G (4GB + 128GB) features a 3.5 mm headphone jack, the average smartphone does not. 45.3% of smartphones include a standard headphone jack.

    Total
    Overall
    Performance & Hardware
    Software
    Camera
    Connectivity
    Display
    Battery
    Audio
    • 50% less storage
      Xiaomi Redmi 15 5G (4GB + 128GB) offers less internal storage than the average smartphone (128 GB vs 256 GB). The average smartphone includes 256 GB of internal storage.
    • 4 GB less RAM
      Xiaomi Redmi 15 5G (4GB + 128GB) has less RAM than the average smartphone (4 GB vs 8 GB). The average smartphone has 8 GB of RAM.
    • Worse processor
      Xiaomi Redmi 15 5G (4GB + 128GB) uses a worse processor than the average smartphone (Qualcomm Snapdragon 6s Gen 3 vs Qualcomm Snapdragon 7 Gen 3).
    • 22.4% slower memory speed
      Xiaomi Redmi 15 5G (4GB + 128GB) has a lower memory speed than the average smartphone (2,133 MHz vs 2,750 MHz). The average smartphone has a memory speed of 2,750 MHz.
    • 33.6% lower memory bandwidth
      Xiaomi Redmi 15 5G (4GB + 128GB) has lower memory bandwidth than the average smartphone (17 GB/s vs 25.6 GB/s). The average smartphone has a bandwidth of 25.6 GB/s.
    • 58.4% lower 3DMark Wild Life Unlimited benchmark
      Xiaomi Redmi 15 5G (4GB + 128GB) scores lower in 3DMark Wild Life Unlimited than the average smartphone (1,592 vs 3,825). The average smartphone scores 3,825.
    • 5.3% slower GPU clock
      Xiaomi Redmi 15 5G (4GB + 128GB) has a lower GPU frequency than the average smartphone (900 MHz vs 950 MHz). The average smartphone has a GPU frequency of 950 MHz.
    • 48.7% lower 3DMark Wild Life benchmark
      Xiaomi Redmi 15 5G (4GB + 128GB) performs worse in the 3DMark Wild Life benchmark than the average smartphone (1,597 vs 3,115). The average smartphone scores 3,115 in this benchmark.
    • 13.5% lower Geekbench 6 multi-core benchmark score
      Xiaomi Redmi 15 5G (4GB + 128GB) performs worse in Geekbench 6 multi-core than the average smartphone (2,192 vs 2,533). The average smartphone scores 2,533 in the Geekbench 6 multi-core test.
    • 4.2% lower CPU boost clock speed
      Xiaomi Redmi 15 5G (4GB + 128GB) has a lower CPU boost clock speed than the average smartphone (2.3 GHz vs 2.4 GHz). The average smartphone has a boost clock speed of 2.4 GHz.
    • No live text recognition
      Xiaomi Redmi 15 5G (4GB + 128GB) does not support live text recognition, the average smartphone does. 51.1% of smartphones offer real-time text recognition.
    • Narrower main camera aperture
      Xiaomi Redmi 15 5G (4GB + 128GB) has a narrower main camera aperture than the average smartphone (f/1.8 vs f/1.8 & f/2.2 & f/2.4 & f/2.4). The average smartphone aperture is f/1.8 & f/2.2 & f/2.4 & f/2.4.
    • Worse main camera video quality
      Xiaomi Redmi 15 5G (4GB + 128GB) records worse main camera video than the average smartphone. 11.8x of smartphones support 4K video recording.
    • 41.9% smaller main camera sensor area
      Xiaomi Redmi 15 5G (4GB + 128GB) has a smaller main camera sensor area than the average smartphone (18.6 mm² vs 32 mm²). The average smartphone sensor area is 32 mm².
    • Lower front camera megapixels
      Xiaomi Redmi 15 5G (4GB + 128GB) has lower front camera megapixels than the average smartphone (8 MP vs 16 MP). The average smartphone has a 16 MP front camera.
    • No slow-motion recording
      Xiaomi Redmi 15 5G (4GB + 128GB) does not support slow-motion recording, the average smartphone does. 90.3% of smartphones offer slow-mo features.
    • 0.19 µm smaller main camera pixel size
      Xiaomi Redmi 15 5G (4GB + 128GB) has a smaller main camera pixel size than the average smartphone (0.6 µm vs 0.8 µm). The average smartphone has a pixel size of 0.8 µm.
    • No manual focus mode
      Xiaomi Redmi 15 5G (4GB + 128GB) does not have a manual focus mode, the average smartphone does. 91.9% of smartphones offer manual focus.
    • Lower-resolution main camera
      Xiaomi Redmi 15 5G (4GB + 128GB) has a lower-resolution main camera than the average smartphone (50 MP & 2 MP vs 50 MP & 8 MP). The average smartphone has a 50 MP & 8 MP main camera.
    • No gyroscope
      Xiaomi Redmi 15 5G (4GB + 128GB) does not have a gyroscope, the average smartphone does. 84.3% of smartphones feature a gyroscope.
    • Older Bluetooth version
      Xiaomi Redmi 15 5G (4GB + 128GB) uses an older Bluetooth version than the average smartphone (5.1 vs 5.2). The average smartphone uses Bluetooth 5.2.
    • Inferior display type
      Xiaomi Redmi 15 5G (4GB + 128GB) has an inferior display type compared to the average smartphone (IPS LCD vs OLED/AMOLED). 0% of smartphones use the superior display type.
    • Lower contrast ratio
      Xiaomi Redmi 15 5G (4GB + 128GB) has a lower contrast ratio than the average smartphone (1400:1 vs 1000000:1). The average smartphone has a contrast ratio of 1000000:1.
    • 5.3% lower pixel density
      Xiaomi Redmi 15 5G (4GB + 128GB) has a lower pixel density than the average smartphone (374 ppi vs 395 ppi). The average smartphone has a pixel density of 395 ppi.
    • Lower screen resolution
      Xiaomi Redmi 15 5G (4GB + 128GB) has a lower screen resolution than the average smartphone (1080x2340 px vs 1080x2400 px). The average smartphone has a resolution of 1080x2400 px.
    • 150 nits lower peak brightness
      Xiaomi Redmi 15 5G (4GB + 128GB) has a lower peak brightness than the average smartphone (850 nits vs 1,000 nits). The average smartphone peak brightness is 1,000 nits.
    • 46 min slower full wired charge time
      Xiaomi Redmi 15 5G (4GB + 128GB) has a slower full wired charge time than the average smartphone (108 min vs 62 min). The average smartphone takes 62 min to charge.
    • No stereo speakers
      Xiaomi Redmi 15 5G (4GB + 128GB) does not have stereo speakers, the average smartphone does. 64.5% of smartphones feature stereo speakers.
    • 1.5 m shallower water resistance
      Xiaomi Redmi 15 5G (4GB + 128GB) has a shallower water resistance depth than the average smartphone (0 m vs 1.5 m). The average smartphone is resistant to 1.5 m.
    • 4.45 mm wider
      Xiaomi Redmi 15 5G (4GB + 128GB) is wider than the average smartphone (80.5 mm vs 76 mm). The average smartphone has a width of 76 mm.
    • 10.6% heavier
      Xiaomi Redmi 15 5G (4GB + 128GB) is heavier than the average smartphone (217 g vs 196.2 g). The average smartphone weighs 196.2 g.
    • 5.88 mm taller
      Xiaomi Redmi 15 5G (4GB + 128GB) is taller than the average smartphone (169.5 mm vs 163.6 mm). The average smartphone has a height of 163.6 mm.
    • Lower IP rating
      Xiaomi Redmi 15 5G (4GB + 128GB) has a lower IP rating than the average smartphone (IP64 vs IP67). 0% of smartphones have a higher IP rating.
    • 10.6% larger volume
      Xiaomi Redmi 15 5G (4GB + 128GB) has a larger volume than the average smartphone (108,160 cm³ vs 97,800 cm³). The average smartphone volume is 97,800 cm³.
    • 0.1 mm thicker
      Xiaomi Redmi 15 5G (4GB + 128GB) is thicker than the average smartphone (8.4 mm vs 8.3 mm). The average smartphone has a thickness of 8.3 mm.
    • Inferior display type
      Xiaomi Redmi 15 5G (4GB + 128GB) has an inferior display type compared to the average smartphone (IPS LCD vs OLED/AMOLED). 0% of smartphones use the superior display type.
      What it is: The specific technology used for the screen panel (e.g., OLED, IPS LCD), influencing contrast, color, and efficiency.
      When it matters: When you care about vibrant colors, deep blacks, and battery efficiency.

      Importance: HIGH

      Xiaomi Redmi 15 5G (4GB + 128GB) has an inferior display type compared to the average smartphone (IPS LCD vs OLED/AMOLED). 0% of smartphones use the superior display type.IPS LCD vs OLED/AMOLED
    • No stereo speakers
      Xiaomi Redmi 15 5G (4GB + 128GB) does not have stereo speakers, the average smartphone does. 64.5% of smartphones feature stereo speakers.
      What it is: A setup involving two or more speakers to create a left-right audio separation for immersive sound.
      When it matters: When you watch videos or play games without headphones and want immersive sound.

      Importance: MEDIUM

      Xiaomi Redmi 15 5G (4GB + 128GB) does not have stereo speakers, the average smartphone does. 64.5% of smartphones feature stereo speakers.
    • 50% less storage
      Xiaomi Redmi 15 5G (4GB + 128GB) offers less internal storage than the average smartphone (128 GB vs 256 GB). The average smartphone includes 256 GB of internal storage.
      What it is: The total built-in space available for apps, media, and files.
      When it matters: When you keep large libraries of photos, videos, and apps directly on your device.

      Importance: HIGH

      Good value: >256 GB

      Xiaomi Redmi 15 5G (4GB + 128GB) offers less internal storage than the average smartphone (128 GB vs 256 GB). The average smartphone includes 256 GB of internal storage.128 GB vs 256 GB
    • Narrower main camera aperture
      Xiaomi Redmi 15 5G (4GB + 128GB) has a narrower main camera aperture than the average smartphone (f/1.8 vs f/1.8 & f/2.2 & f/2.4 & f/2.4). The average smartphone aperture is f/1.8 & f/2.2 & f/2.4 & f/2.4.
      What it is: The size of the lens opening (f-stop) that controls light entry. A lower f-number indicates a wider aperture, allowing better low-light shots.
      When it matters: When you want better low-light performance or a natural background blur effect.

      Importance: HIGH

      Xiaomi Redmi 15 5G (4GB + 128GB) has a narrower main camera aperture than the average smartphone (f/1.8 vs f/1.8 & f/2.2 & f/2.4 & f/2.4). The average smartphone aperture is f/1.8 & f/2.2 & f/2.4 & f/2.4.f/1.8 vs f/1.8 & f/2.2 & f/2.4 & f/2.4
    • 46 min slower full wired charge time
      Xiaomi Redmi 15 5G (4GB + 128GB) has a slower full wired charge time than the average smartphone (108 min vs 62 min). The average smartphone takes 62 min to charge.
      What it is: The time taken to charge the battery from 0% to 100% using the bundled or recommended charger, as measured by GSMArena.
      When it matters: When you want to know exactly how long it takes to charge from 0 to 100% in real-world tests.

      Importance: MEDIUM

      Good value: <45 min

      Xiaomi Redmi 15 5G (4GB + 128GB) has a slower full wired charge time than the average smartphone (108 min vs 62 min). The average smartphone takes 62 min to charge.108 min vs 62 min
    • Worse main camera video quality
      Xiaomi Redmi 15 5G (4GB + 128GB) records worse main camera video than the average smartphone. 11.8x of smartphones support 4K video recording.
      What it is: The maximum resolution and frame rate at which the main rear camera can record video.
      When it matters: When you want to record memories or content in high definition or 4K.

      Importance: MEDIUM

      Xiaomi Redmi 15 5G (4GB + 128GB) records worse main camera video than the average smartphone. 11.8x of smartphones support 4K video recording.1080x30 fps vs 2160x30 fps
    • 4 GB less RAM
      Xiaomi Redmi 15 5G (4GB + 128GB) has less RAM than the average smartphone (4 GB vs 8 GB). The average smartphone has 8 GB of RAM.
      What it is: The amount of volatile memory available for running apps and multitasking.
      When it matters: When you use multiple apps at once or want smoother multitasking without reloads.

      Importance: HIGH

      Good value: >12 GB

      Xiaomi Redmi 15 5G (4GB + 128GB) has less RAM than the average smartphone (4 GB vs 8 GB). The average smartphone has 8 GB of RAM.4 GB vs 8 GB
    • 41.9% smaller main camera sensor area
      Xiaomi Redmi 15 5G (4GB + 128GB) has a smaller main camera sensor area than the average smartphone (18.6 mm² vs 32 mm²). The average smartphone sensor area is 32 mm².
      What it is: The total physical surface area of the camera sensor (calculated by multiplying the number of megapixels by the square of the individual pixel size). A larger area captures more light, resulting in better night photos and less digital noise.
      When it matters: When you want to capture clear, detailed photos in low-light conditions with minimal grain and achieve a natural, professional-looking background blur for portraits.

      Importance: HIGH

      Good value: >60

      Xiaomi Redmi 15 5G (4GB + 128GB) has a smaller main camera sensor area than the average smartphone (18.6 mm² vs 32 mm²). The average smartphone sensor area is 32 mm².18.6 mm² vs 32 mm²
    Total
    Performance & Hardware
    Software
    Camera
    Connectivity
    Display
    Battery
    Audio
    Design

    Graphic comparison of Xiaomi Redmi 15 5G (4GB + 128GB) and other smartphones

    Attribute category
    Attribute
    No results found

    Third-party reviews

    United Kingdom
    amazon
    4.2
    49 Reviews
    United States
    Amazon_logo.png
    3.7
    14 Reviews

    (Reviews last updated: August 2026)

    United Kingdom
    amazon
    4.4
    222 Reviews
    amazon
    4.3
    158 Reviews
    amazon
    4.3
    144 Reviews
    amazon
    4.5
    118 Reviews
    amazon
    4.4
    108 Reviews
    United States
    Amazon_logo.png
    4.4
    144 Reviews

    (Reviews last updated: August 2026)

    What customers like about Xiaomi Redmi 15 5G (4GB + 128GB)?

    • Extremely long or reliable battery life (7000mAh capacity), often lasting 1.5 days or more with typical use.
    • Great value for money and solid specs for its price range.
    • Sleek, slim, and lightweight design that is comfortable to hold, despite the large battery capacity.
    • Large 6.9-inch FHD+ display with a 144Hz refresh rate, praised for its clarity, vibrant colors, and good outdoor visibility.
    • Durable build with an IP64 dust and water resistance rating.
    • Dependable and smooth performance for everyday tasks, web browsing, and casual gaming.
    • The 50MP main camera captures sharp, detailed, and color-accurate photos in good daylight conditions.
    • Long-term software support with promises of four Android OS upgrades and six years of security updates.
    • Includes a 33W fast charger in the box and supports 18W reverse charging.
    • Features useful extras like a side-mounted fingerprint sensor, dual SIM support, and an IR blaster.

    What customers dislike about Xiaomi Redmi 15 5G (4GB + 128GB)?

    • Performance can feel laggy or stutter under heavier loads or when running multiple apps simultaneously.
    • Comes with a single mono speaker, which lacks bass and overall audio richness compared to stereo setups.
    • The display is an IPS LCD panel, not an AMOLED, which some competitors offer at a similar price point.
    • Weak low-light camera performance, with noticeable noise and loss of detail in nighttime photos.
    • No ultrawide or telephoto camera lenses, limiting photographic versatility.
    • Front/selfie camera performance is underwhelming, often producing washed-out skin tones and artificial texture processing.
    • Does not have a 3.5mm headphone jack.
    • Ships with pre-installed bloatware and older Android 15 software out of the box.
    • Lack of a consistent 120Hz refresh rate across all apps; some apps are capped at 60Hz by default.

    Expert reviews

    M
    m.gsmarena.com
    04/09/2025
    Summary of the review
    Xiaomi Redmi 15 5G hands-on review - Reader comments
    S
    smartzone.de
    23/08/2025
    Summary of the review
    Xiaomi Redmi 15 5G Review - Smartzone
    (Translated)Show original
    B
    billiger.de
    07/11/2025
    Summary of the review
    Xiaomi Redmi 15 5G Review: Big battery… but…
    (Translated)Show original
    F
    frandroid.com
    24/10/2025
    Summary of the review
    Xiaomi Redmi 15 Review: Our Full Verdict
    (Translated)Show original
    M
    mundoxiaomi.com
    20/08/2025
    Summary of the review
    The new REDMI 15 5G is a real statement of intent
    (Translated)Show original
    T
    topesdegama.com
    25/01/2026
    Summary of the review
    Redmi Note 15 5G Review: The Silent Upgrade Making a Difference in the Series
    (Translated)Show original

    Video reviews

    Best alternatives

    t-mobile-t-phone-3-6gb-128gb
    T-Mobile T Phone 3 (6GB + 128GB)

    Smartphones

    7.7
    xiaomi-11t
    Xiaomi 11T 5G (8GB + 256GB)

    Smartphones

    7.6
    infinix-note-40x-5g
    Infinix Note 40X 5G (12GB + 256GB)

    Smartphones

    7.4
    tecno-pova-7
    Tecno Pova 7 (8GB + 256GB)

    Smartphones

    7.3
    cmf-phone-1
    CMF Phone 1 (8GB + 128GB)

    Smartphones

    7.2
    cubot-p90-12gb-256gb-4g
    CUBOT P90 4G (12GB + 256GB)

    Smartphones

    7.2
    xiaomi-poco-m7-4g-8gb-256gb-4g
    Poco M7 4G (8GB + 256GB)

    Smartphones

    7.1
    xiaomi-12-lite
    Xiaomi 12 Lite (8GB + 128GB)

    Smartphones

    7.5
    oppo-a40
    Oppo A40 (8GB + 256GB)

    Smartphones

    6.9
    realme-c67
    realme C67 (6GB + 128GB)

    Smartphones

    6.9
    realme-narzo-50
    realme Narzo 50 (4GB + 128GB)

    Smartphones

    6.8
    lg-v40-thinq
    LG V40 ThinQ (6GB + 64GB)

    Smartphones

    6.8

    Compare Xiaomi Redmi 15 5G (4GB + 128GB) with other smartphones

    VS
    VS

    Compare