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Samsung Galaxy M15 5G (4GB + 128GB) Review | 197 Data compared

Avg. price in UK: ~£140
Avg. price in US: ~$130
RAM capacity: 4 GB
Internal storage: 128 GB
Screen size: 6.5 inches
Main camera megapixels: 50 MP & 5 MP & 2 MP

Samsung Galaxy M15 5G (4GB + 128GB) review. Compare 197 technical specifications and user reviews to see how this product ranks in the Smartphones category and whether it is worth buying.

6.8

Good

6.6

Good

8.2

Excellent

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Verdict

The Samsung Galaxy M15 5G (4GB + 128GB) is a budget-friendly smartphone featuring a vibrant 6.5-inch Full HD+ Super AMOLED display with a 90Hz refresh rate, powered by the MediaTek Dimensity 6100+ processor and running Android 14 out of the box. The main pros include a massive and long-lasting 6,000mAh battery with 25W fast charging support, a versatile 50MP triple-camera system, a 13MP front camera, and an impressive software commitment of four generations of OS upgrades plus five years of security updates. Primary cons reported by some users for the 4GB RAM variant include potential performance lags or hanging issues during use and the fact that a charger is not always included in the box.

Technical Specifications of smartphone Samsung Galaxy M15 5G (4GB + 128GB)

Overall score

6.8

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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.

Performance & Hardware

6.2

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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: LOW

Samsung

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

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

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: MEDIUM

Good value: >256 GB

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

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Software

8.1

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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: MEDIUM

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

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: LOW

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

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

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Camera

6.4

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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: LOW

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: MEDIUM

Good value: >50 MP

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: MEDIUM

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

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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: LOW

Good value: ≥1.2 µm

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Connectivity

7.7

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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: LOW

Good value: ≥2

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

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: LOW

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: LOW

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: LOW

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Display

6.0

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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: LOW

Good value: ≥6.6 inches

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: MEDIUM

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: LOW

Good value: >400 ppi

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: MEDIUM

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: MEDIUM

Good value: ≥120 Hz

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Battery

7.0

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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

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: MEDIUM

Good value: >60 W

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: LOW

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: LOW

Good value: <45 min

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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: LOW

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Audio

3.9

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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: LOW

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

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: LOW

Good value: ≥3

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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

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

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Design

7.5

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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

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

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

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: LOW

Good value: <190 g

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

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Samsung Galaxy M15 5G (4GB + 128GB) vs the average smartphone

Why is Samsung Galaxy M15 5G (4GB + 128GB) better than the average smartphone?

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20% larger battery capacity
Samsung Galaxy M15 5G (4GB + 128GB) has a larger battery capacity than the average smartphone (6000 mAh vs 5000 mAh). The average smartphone battery is 5000 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
Samsung Galaxy M15 5G (4GB + 128GB) has a larger battery capacity than the average smartphone (6000 mAh vs 5000 mAh). The average smartphone battery is 5000 mAh.6000 mAh vs 5000 mAh
Higher on-device AI tier
Samsung Galaxy M15 5G (4GB + 128GB) runs on the productivity AI tier, while the average smartphone runs on fundamental, enabling stronger on-device AI features.
Circle to Search, Voice Focus, Vision Booster
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: LOW
Samsung Galaxy M15 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
Has an always-on display
Samsung Galaxy M15 5G (4GB + 128GB) features an always-on display, the average smartphone does not. 49.2% of smartphones offer always-on functionality.
What it is: A feature that keeps a portion of the screen active to show time, date, and notifications while the device is asleep.
When it matters: When you want to glance at the time or notifications without touching the phone.
Importance: LOW
Samsung Galaxy M15 5G (4GB + 128GB) features an always-on display, the average smartphone does not. 49.2% of smartphones offer always-on functionality.
Has a 3.5 mm headphone jack
Samsung Galaxy M15 5G (4GB + 128GB) features a 3.5 mm headphone jack, the average smartphone does not. 45.5% of smartphones include a standard 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
Samsung Galaxy M15 5G (4GB + 128GB) features a 3.5 mm headphone jack, the average smartphone does not. 45.5% of smartphones include a standard headphone jack.
Wider front camera aperture
Samsung Galaxy M15 5G (4GB + 128GB) has a wider front camera aperture than the average smartphone (f/2 vs f/2.2). The average aperture is f/2.2.
What it is: The f-stop value of the front camera lens, affecting light intake and background blur in selfies.
When it matters: When you take selfies in low light and want them to appear brighter.
Importance: LOW
Samsung Galaxy M15 5G (4GB + 128GB) has a wider front camera aperture than the average smartphone (f/2 vs f/2.2). The average aperture is f/2.2.f/2 vs f/2.2
21.2% higher screen brightness
Samsung Galaxy M15 5G (4GB + 128GB) has a higher screen brightness than the average smartphone (800 nits vs 660 nits). The average smartphone brightness is 660 nits.
What it is: The highest sustained brightness level the screen can achieve to remain visible under direct sunlight.
When it matters: When you need to read your screen clearly under direct sunlight.
Importance: LOW
Good value: >800 nits
Samsung Galaxy M15 5G (4GB + 128GB) has a higher screen brightness than the average smartphone (800 nits vs 660 nits). The average smartphone brightness is 660 nits.800 nits vs 660 nits
Newer Bluetooth version
Samsung Galaxy M15 5G (4GB + 128GB) supports a newer Bluetooth version than the average smartphone (5.3 vs 5.2). The average version is Bluetooth 5.2.
What it is: The generation of Bluetooth technology supported for wireless communication with peripherals like headphones and smartwatches.
When it matters: When you want a stable, low-latency connection to your headphones or smartwatch.
Importance: LOW
Good value: >5.2
Samsung Galaxy M15 5G (4GB + 128GB) supports a newer Bluetooth version than the average smartphone (5.3 vs 5.2). The average version is Bluetooth 5.2.5.3 vs 5.2
3.5 mm shorter
Samsung Galaxy M15 5G (4GB + 128GB) is shorter than the average smartphone (160.1 mm vs 163.6 mm). The average smartphone height is 163.6 mm.
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
Samsung Galaxy M15 5G (4GB + 128GB) is shorter than the average smartphone (160.1 mm vs 163.6 mm). The average smartphone height is 163.6 mm.160.1 mm vs 163.6 mm
Higher on-device AI tier
Samsung Galaxy M15 5G (4GB + 128GB) runs on the productivity AI tier, while the average smartphone runs on fundamental, enabling stronger on-device AI features.
Wider front camera aperture
Samsung Galaxy M15 5G (4GB + 128GB) has a wider front camera aperture than the average smartphone (f/2 vs f/2.2). The average aperture is f/2.2.
Newer Bluetooth version
Samsung Galaxy M15 5G (4GB + 128GB) supports a newer Bluetooth version than the average smartphone (5.3 vs 5.2). The average version is Bluetooth 5.2.
Has an always-on display
Samsung Galaxy M15 5G (4GB + 128GB) features an always-on display, the average smartphone does not. 49.2% of smartphones offer always-on functionality.
21.2% higher screen brightness
Samsung Galaxy M15 5G (4GB + 128GB) has a higher screen brightness than the average smartphone (800 nits vs 660 nits). The average smartphone brightness is 660 nits.
0.3% higher pixel density
Samsung Galaxy M15 5G (4GB + 128GB) has a higher pixel density than the average smartphone (396 ppi vs 395 ppi). The average smartphone has a pixel density of 395 ppi.
20% larger battery capacity
Samsung Galaxy M15 5G (4GB + 128GB) has a larger battery capacity than the average smartphone (6000 mAh vs 5000 mAh). The average smartphone battery is 5000 mAh.
Has a 3.5 mm headphone jack
Samsung Galaxy M15 5G (4GB + 128GB) features a 3.5 mm headphone jack, the average smartphone does not. 45.5% of smartphones include a standard headphone jack.
3.5 mm shorter
Samsung Galaxy M15 5G (4GB + 128GB) is shorter than the average smartphone (160.1 mm vs 163.6 mm). The average smartphone height is 163.6 mm.

Why is Samsung Galaxy M15 5G (4GB + 128GB) worse than the average smartphone?

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Worse processor
Samsung Galaxy M15 5G (4GB + 128GB) uses a worse processor than the average smartphone (MediaTek Dimensity 6100+ vs Qualcomm Snapdragon 7 Gen 3).
4 GB less RAM
Samsung Galaxy M15 5G (4GB + 128GB) has less RAM than the average smartphone (4 GB vs 8 GB). The average smartphone has 8 GB of RAM.
50% less storage
Samsung Galaxy M15 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.
50% less L3 cache
Samsung Galaxy M15 5G (4GB + 128GB) has a smaller L3 cache than the average smartphone (2048 KB vs 4096 KB). The average smartphone has an L3 cache of 4096 KB.
26.9% lower Geekbench 6 single-core benchmark score
Samsung Galaxy M15 5G (4GB + 128GB) performs worse in Geekbench 6 single-core than the average smartphone (689 vs 942). The average smartphone scores 942 in the Geekbench 6 single-core test.
8.3% lower CPU boost clock speed
Samsung Galaxy M15 5G (4GB + 128GB) has a lower CPU boost clock speed than the average smartphone (2.2 GHz vs 2.4 GHz). The average smartphone has a boost clock speed of 2.4 GHz.
22.4% slower memory speed
Samsung Galaxy M15 5G (4GB + 128GB) has a lower memory speed than the average smartphone (2133 MHz vs 2750 MHz). The average smartphone has a memory speed of 2750 MHz.
25.6% lower Geekbench 6 multi-core benchmark score
Samsung Galaxy M15 5G (4GB + 128GB) performs worse in Geekbench 6 multi-core than the average smartphone (1884 vs 2533). The average smartphone scores 2533 in the Geekbench 6 multi-core test.
14.3% lower maximum RAM capacity
Samsung Galaxy M15 5G (4GB + 128GB) supports less maximum RAM than the average smartphone (12 GB vs 14 GB). The average smartphone supports 14 GB of RAM.
33.3% lower memory bandwidth
Samsung Galaxy M15 5G (4GB + 128GB) has lower memory bandwidth than the average smartphone (17.1 GB/s vs 25.6 GB/s). The average smartphone has a bandwidth of 25.6 GB/s.
No live text recognition
Samsung Galaxy M15 5G (4GB + 128GB) does not support live text recognition, the average smartphone does. 50.9% of smartphones offer real-time text recognition.
Worse main camera video quality
Samsung Galaxy M15 5G (4GB + 128GB) records worse main camera video than the average smartphone. 11.8x of smartphones support 4K video recording.
Narrower main camera aperture
Samsung Galaxy M15 5G (4GB + 128GB) has a narrower main camera aperture than the average smartphone (f/1.8 & f/2.2 & f/2.4 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.
Lower front camera megapixels
Samsung Galaxy M15 5G (4GB + 128GB) has lower front camera megapixels than the average smartphone (13 MP vs 16 MP). The average smartphone has a 16 MP front camera.
25% lower refresh rate
Samsung Galaxy M15 5G (4GB + 128GB) has a lower refresh rate than the average smartphone (90 Hz vs 120 Hz). The average smartphone has a refresh rate of 120 Hz.
0.17 inches inch smaller screen size
Samsung Galaxy M15 5G (4GB + 128GB) has a smaller screen size than the average smartphone (6.5 inches vs 6.67 inches). The average smartphone has a screen size of 6.67 inches.
Worse display glass type
Samsung Galaxy M15 5G (4GB + 128GB) uses a worse display glass type than the average smartphone (Corning Gorilla Glass vs Corning Gorilla Glass 5). 0% of smartphones use the better glass type.
Lower screen resolution
Samsung Galaxy M15 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.
200 nits lower peak brightness
Samsung Galaxy M15 5G (4GB + 128GB) has a lower peak brightness than the average smartphone (800 nits vs 1000 nits). The average smartphone peak brightness is 1000 nits.
24.2% slower charging speed
Samsung Galaxy M15 5G (4GB + 128GB) has a slower charging speed than the average smartphone (25 W vs 33 W). The average smartphone charges at 33 W.
No stereo speakers
Samsung Galaxy M15 5G (4GB + 128GB) does not have stereo speakers, the average smartphone does. 64.4% of smartphones feature stereo speakers.
No aptX HD
Samsung Galaxy M15 5G (4GB + 128GB) does not support aptX HD, the average smartphone does. 50.7% of smartphones support aptX HD.
10.6% heavier
Samsung Galaxy M15 5G (4GB + 128GB) is heavier than the average smartphone (217 g vs 196.2 g). The average smartphone weighs 196.2 g.
1 mm thicker
Samsung Galaxy M15 5G (4GB + 128GB) is thicker than the average smartphone (9.3 mm vs 8.3 mm). The average smartphone has a thickness of 8.3 mm.
0.8 mm wider
Samsung Galaxy M15 5G (4GB + 128GB) is wider than the average smartphone (76.8 mm vs 76 mm). The average smartphone has a width of 76 mm.
Poor brand origin
Samsung Galaxy M15 5G (4GB + 128GB) has a poorer brand origin compared to the average smartphone. 0% of smartphones come from top-tier brand origins.
11.9% larger volume
Samsung Galaxy M15 5G (4GB + 128GB) has a larger volume than the average smartphone (109440 cm³ vs 97800 cm³). The average smartphone volume is 97800 cm³.
Worse processor
Samsung Galaxy M15 5G (4GB + 128GB) uses a worse processor than the average smartphone (MediaTek Dimensity 6100+ vs Qualcomm Snapdragon 7 Gen 3).
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
Samsung Galaxy M15 5G (4GB + 128GB) uses a worse processor than the average smartphone (MediaTek Dimensity 6100+ vs Qualcomm Snapdragon 7 Gen 3).MediaTek Dimensity 6100+ vs Qualcomm Snapdragon 7 Gen 3
Worse main camera video quality
Samsung Galaxy M15 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
Samsung Galaxy M15 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
25% lower refresh rate
Samsung Galaxy M15 5G (4GB + 128GB) has a lower refresh rate than the average smartphone (90 Hz vs 120 Hz). The average smartphone has a refresh rate of 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: MEDIUM
Good value: ≥120 Hz
Samsung Galaxy M15 5G (4GB + 128GB) has a lower refresh rate than the average smartphone (90 Hz vs 120 Hz). The average smartphone has a refresh rate of 120 Hz.90 Hz vs 120 Hz
50% less storage
Samsung Galaxy M15 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: MEDIUM
Good value: >256 GB
Samsung Galaxy M15 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
4 GB less RAM
Samsung Galaxy M15 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
Samsung Galaxy M15 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
No stereo speakers
Samsung Galaxy M15 5G (4GB + 128GB) does not have stereo speakers, the average smartphone does. 64.4% 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: LOW
Samsung Galaxy M15 5G (4GB + 128GB) does not have stereo speakers, the average smartphone does. 64.4% of smartphones feature stereo speakers.
No live text recognition
Samsung Galaxy M15 5G (4GB + 128GB) does not support live text recognition, the average smartphone does. 50.9% of smartphones offer real-time text recognition.
What it is: A feature that can identify and extract text from images, camera viewfinder, or documents in real-time for copying, translating, or other actions.
When it matters: When you need to quickly copy text from a physical document or sign using your camera.
Importance: LOW
Samsung Galaxy M15 5G (4GB + 128GB) does not support live text recognition, the average smartphone does. 50.9% of smartphones offer real-time text recognition.
0.17 inches inch smaller screen size
Samsung Galaxy M15 5G (4GB + 128GB) has a smaller screen size than the average smartphone (6.5 inches vs 6.67 inches). The average smartphone has a screen size of 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: LOW
Good value: ≥6.6 inches
Samsung Galaxy M15 5G (4GB + 128GB) has a smaller screen size than the average smartphone (6.5 inches vs 6.67 inches). The average smartphone has a screen size of 6.67 inches.6.5 inches vs 6.67 inches

Performance & Hardware

Graphic comparison of Samsung Galaxy M15 5G (4GB + 128GB) and other smartphones

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Third-party reviews

United Kingdom

(Reviews last updated: August 2026)

What customers like about Samsung Galaxy M15 5G (4GB + 128GB)?

Massive 6000mAh battery that can last for up to two days with normal to heavy usage.
High-quality 6.5-inch Full HD+ Super AMOLED display with a 90Hz refresh rate, praised for rich colors and sharpness not typically found in its price range.
Good overall performance for everyday tasks, social media, and light gaming, powered by the MediaTek Dimensity 6100+ processor.
Excellent software support, with Samsung promising 4 generations of Android OS upgrades and 5 years of security updates.
Solid and sturdy build quality and sleek design, feeling more premium than its budget price suggests.
Expandable storage (up to 1 TB via microSD) and the presence of a 3.5mm headphone jack.
5G connectivity makes the phone future-proof.
Good value for money at its price point, offering a strong set of features for budget-conscious users.

What customers dislike about Samsung Galaxy M15 5G (4GB + 128GB)?

Camera performance dips in low light or indoor environments, with visible noise and a lack of clarity; adequate for social media but not professional photography.
Performance can feel less powerful compared to higher-end models, and it is not a gaming powerhouse for very demanding games.
Some users reported the phone can sometimes experience lag or hang frequently.
A charger may not be included in the box depending on the region, despite supporting 25W fast charging.
Some users noted the design feels a bit old-fashioned because of the waterdrop notch display, as punch-hole displays are more common.
The phone can feel a bit heavy due to the large battery.

Expert reviews

quechoisir.org

28/03/2026

Summary of the review

Samsung Galaxy M15 5G Review - Smartphone - UFC-Que Choisir

The Samsung Galaxy M15 5G, reviewed by UFC-Que Choisir, stands out as a budget-friendly, long-endurance smartphone powered by a 6,000 mAh battery and featuring a vibrant 6.5-inch Super AMOLED 90Hz display. Performance is driven by the MediaTek Dimensity 6100+ processor and 4GB of RAM, suitable for daily tasks, while a significant advantage is the promise of 4 generations of Android OS upgrades. However, the device features a dated design with thick bezels, average low-light camera performance without OIS, no included charger, and a relatively heavy 219g build.

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