Scored using eReaders Methodology v1.0
eReaders Methodology v1.0
Mathematical & Unbiased Scoring
Products in this category are evaluated mathematically under Frontumo eReaders Methodology v1.0 using verified laboratory benchmarks, technical specifications, and authentic consumer ratings with 0% commercial bias.
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Sony Prs 650 Review | 68 Data compared

Avg. price:~£200Screen size:6 inchesPixel density:167 ppiInternal storage:2 GBBattery life:14 hoursSupported bookstore ecosystem:Sony Open Ecosystem

Sony Prs 650 Review: Compare 68 technical specifications and user reviews to see how this product ranks in the eReaders category and whether it is worth buying.

4.4

Overall score

Score
4.4/ 10
✕
What it is
An overall evaluation of the eReader's quality, based on technical analyses and user reviews.
When it matters
When you need a quick reference to identify the best eReaders on the market.
Score distribution
â–¼
<55-66-77-88-99-10
Score components

90%

4.2

Technical score

10%

6.8

User score

â–¼Worse than 93% of ereaders
4.2

Technical score

Technical score
4.2/ 10
✕
What it is
An assessment of the eReader's technical performance, covering key areas such as display quality, reading features, battery life, format support, ecosystem, and design.
When it matters
When you want to compare eReaders based on technical performance and available features.
Score distribution
â–¼
<55-66-77-88-99-10
Score components

25%

3.3

Display

22%

6.3

Reading

18%

3.4

Battery

14%

3.7

Hardware

12%

2.1

Connectivity

9%

6.5

Design

â–¼Worse than 95% of ereaders
6.8

User score

User score
6.8/ 10
✕
What it is
A rating that combines user reviews and the total number of reviews received by the eReader.
When it matters
When you want to know how an eReader feels in daily reading and how reliable it is for screen comfort, battery life, and library management according to user feedback.
Score distribution
â–¼
<55-66-77-88-99-10
Score components

70%

8.5

User ratings

30%

2.9

Number of reviews

Based on 6 buyer reviews from online shops.
How we calculate this
User ratings – average star rating across all shop listings, weighted by how many reviews each has, on a 1–10 scale.
Number of reviews – how many buyer reviews the product has, on a logarithmic scale; the 8% most-reviewed models in the category get 10.
â–¼Worse than 89% of ereaders
  • sony-prs-650
sony-prs-650

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Technical Specifications of eReader Sony Prs 650

Technical score
Technical score
4.2/ 10
✕
What it is
An assessment of the eReader's technical performance, covering key areas such as display quality, reading features, battery life, format support, ecosystem, and design.
When it matters
When you want to compare eReaders based on technical performance and available features.
Score distribution
â–¼
<55-66-77-88-99-10
Score components:

25%

3.3

Display

22%

6.3

Reading

18%

3.4

Battery

14%

3.7

Hardware

12%

2.1

Connectivity

9%

6.5

Design

4.2
User score
User score
6.8/ 10
✕
What it is
A rating that combines user reviews and the total number of reviews received by the eReader.
When it matters
When you want to know how an eReader feels in daily reading and how reliable it is for screen comfort, battery life, and library management according to user feedback.
Score distribution
â–¼
<55-66-77-88-99-10
Score components

70%

8.5

User ratings

30%

2.9

Number of reviews

Based on 6 buyer reviews from online shops.
How we calculate this
User ratings – average star rating across all shop listings, weighted by how many reviews each has, on a 1–10 scale.
Number of reviews – how many buyer reviews the product has, on a logarithmic scale; the 8% most-reviewed models in the category get 10.
6.8
Popularity
Popularity
2.9/ 10
✕
What it is
An indicator based on the number of reviews received by the eReader.
When it matters
When you prefer to choose an eReader reviewed and selected by many other buyers.
Score distribution
â–¼
<55-66-77-88-99-10
Popularity:
Sony Prs 650 has a popularity score of 2.9 points, which is lower than that of 69.7% of products in this category.
2.9
Value for money
Value for money
6.0/ 10
✕
What it is
An indicator that combines the eReader's overall rating with its cost.
When it matters
When you are looking for an eReader with a good balance between reading comfort, features, and price.
Score distribution
â–¼
<55-66-77-88-99-10
Score components:

60%

4.4

Overall score

40%

9.5

Price

6.0
Brand name
Sony
Screen size
6 inches
Screen size
6 inches
This ereader has a screen size of 6 inches which is smaller than 57.4% on this spec and equal to 40.2% of eReaders.
Screen resolution
600x800 px
Screen resolution
600x800 px
This ereader uses a screen resolution of 600x800 px, which is less sharp than that of 83.6% of eReaders and the same as that of 15.6% of eReaders.
Pixel density
167 ppi
Pixel density
167 ppi
This ereader has a pixel density of 167 ppi which is lower than 77.9% on this spec and equal to 10.7% of eReaders.
E-paper display
yes
E-paper display
yes
This ereader uses an e-paper display. 2.5% of eReaders have an e-paper display.
Show more
Supported file types
6
Supported file types
6
This ereader supports 6 file types which is fewer than 90.7% on this spec and equal to 3.4% of eReaders.
PDF reflow support
yes
PDF reflow support
yes
This ereader offers PDF reflow. 45.5% of eReaders support PDF reflow.
Annotation support
yes
Annotation support
yes
This ereader offers annotation support. 1.6% of eReaders offer annotation support.
Dictionary
yes
Dictionary
yes
This ereader includes a built-in dictionary. 0.8% of eReaders include a built-in dictionary.
Text-to-speech
no
Text-to-speech
no
This ereader does not offer text-to-speech. 64.8% of eReaders include text-to-speech.
Show more
Battery life
14 hours
Battery life
14 hours
This ereader offers 14 hours of battery life which is shorter than 83.3% on this spec and equal to 2.1% of eReaders.
Advertised as "up to 2 weeks", actual usage varies depending on standby/shutdown usage
Battery capacity
940 mAh
Battery capacity
940 mAh
This ereader has a battery capacity of 940 mAh which is lower than 95.9% on this spec and equal to 0.8% of eReaders.
Charging time
2 hours
Charging time
2 hours
This ereader takes 2 hours to charge which is quicker than 49.1% on this spec and equal to 40% of eReaders.
2 with optional AC adapter; may take significantly longer via USB
Wireless charging
no
Wireless charging
no
This ereader does not offer wireless charging. 7.4% of eReaders offer wireless charging.
Internal storage
2 GB
Internal storage
2 GB
This ereader offers 2 GB of internal storage which is less than 81.2% on this spec and equal to 17.2% of eReaders.
RAM capacity
0.128 GB
RAM capacity
0.128 GB
This ereader offers 0.128 GB of RAM which is less than 87.7% on this spec and equal to 11.5% of eReaders.
CPU base clock speed
1x 0.532 GHz
CPU base clock speed
1x 0.532 GHz
This ereader has a CPU base clock speed of 1x0.532 GHz, which is slower than that of 95.9% of eReaders and the same as that of 3.3% of eReaders.
Operating system
MontaVista Linux
Operating system
MontaVista Linux
This ereader runs MontaVista Linux, which is less advanced than that of 80.3% of eReaders and the same as that of 1.6% of eReaders.
Memory card slot
yes
Memory card slot
yes
This ereader has a memory card slot. 57.4% of eReaders have a memory card slot.
Show more
Wi-Fi connectivity
no
Wi-Fi connectivity
no
This ereader does not connect over Wi-Fi. 94.3% of eReaders have Wi-Fi.
Wi-Fi version
WiFi not supported
Wi-Fi version
WiFi not supported
This ereader supports Wi-Fi WiFi not supported, which is older than that of 94.3% of eReaders and the same as that of 5.7% of eReaders.
Wi-Fi bands supported
no Wi-Fi
Wi-Fi bands supported
no Wi-Fi
This ereader supports no Wi-Fi Wi-Fi bands, which is narrower than that of 94.3% of eReaders and the same as that of 5.7% of eReaders.
Bluetooth
no
Bluetooth
no
This ereader does not connect over Bluetooth. 60.7% of eReaders have Bluetooth.
Bluetooth version
N/A
Show more
Weight
215 g
Weight
215 g
This ereader weighs 215 g which is heavier than 51.6% on this spec and equal to 0.8% of eReaders.
Thickness
9.6 mm
Thickness
9.6 mm
This ereader is 9.6 mm thick which is thicker than 76.9% on this spec and equal to 0.8% of eReaders.
Height
168 mm
Height
168 mm
This ereader is 168 mm tall which is shorter than 57.4% on this spec.
Width
118.8 mm
Width
118.8 mm
This ereader is 118.8 mm wide which is narrower than 68% on this spec.
Water resistance (splashproof)
no
Water resistance (splashproof)
no
This ereader does not have water resistance against splashes. 25% of eReaders have water resistance against splashes.
Show more

Sony Prs 650 vs the average eReader

246810TotalDisplayReadingBatteryHardwareConnectivityDesign
  • Memory card slot
    Memory card slot
    yes
    This ereader includes a memory card slot, while the average eReader does not. 43.1% of eReaders include a memory card slot.
  • Page-turn buttons
    Page-turn buttons
    yes
    This ereader has page-turn buttons, while the average eReader does not. 44.7% of eReaders have page-turn buttons.
  • 3.5 mm jack
    3.5 mm headphone jack
    yes
    This ereader has a 3.5 mm headphone jack, while the average eReader does not. 15.6% of eReaders have a 3.5 mm headphone jack.
  • Supports stylus
    Stylus support
    yes
    This ereader supports a stylus, while the average eReader does not. 38.2% of eReaders support a stylus.
    supplied stylus can be used for notes and page swiping
  • Stylus included
    Stylus included
    yes
    This ereader includes a stylus, while the average eReader does not. 29.3% of eReaders include a stylus.
    Stylus included in the box.
  • Supports stylus
    Stylus support
    yes
    This ereader supports a stylus, while the average eReader does not. 38.2% of eReaders support a stylus.
    supplied stylus can be used for notes and page swiping
  • Stylus included
    Stylus included
    yes
    This ereader includes a stylus, while the average eReader does not. 29.3% of eReaders include a stylus.
    Stylus included in the box.
  • Memory card slot
    Memory card slot
    yes
    This ereader includes a memory card slot, while the average eReader does not. 43.1% of eReaders include a memory card slot.
  • 3.5 mm jack
    3.5 mm headphone jack
    yes
    This ereader has a 3.5 mm headphone jack, while the average eReader does not. 15.6% of eReaders have a 3.5 mm headphone jack.
  • Page-turn buttons
    Page-turn buttons
    yes
    This ereader has page-turn buttons, while the average eReader does not. 44.7% of eReaders have page-turn buttons.
  • Limited bookstore ecosystem
    Supported bookstore ecosystem
    Sony Open Ecosystem
    This ereader uses the Sony Open Ecosystem bookstore ecosystem, while the average eReader uses Android Open Ecosystem.
    Sony eBookstore, Kobo, Google Books, and other Adobe DRM or DRM-free EPUB/PDF stores.
    Sony Open Ecosystem vs Android Open Ecosystem
  • Less advanced E-Ink technology
    E-Ink technology
    Pearl
    This ereader uses Pearl E-Ink technology, while the average eReader uses Carta Plus.
    Pearl vs Carta Plus
  • No front light
    Front light
    no
    This ereader does not include front light, while the average eReader does. 74% of eReaders include front light.
  • Lower screen resolution
    Screen resolution
    600x800 px
    This ereader supports lower screen resolution than the average eReader (600x800 px vs 1072x1448 px). The average eReader supports 1072x1448 px screen resolution.
    600x800 px vs 1072x1448 px
  • 37% lower pixel density
    Pixel density
    167 ppi
    This ereader has a lower pixel density than the average eReader (167 ppi vs 265 ppi). The average eReader has a pixel density of 265 ppi.
    167 ppi vs 265 ppi
  • No USB Type-C
    USB Type-C
    no
    This ereader does not have USB Type-C, while the average eReader does. 51.2% of eReaders have USB Type-C.
  • 7 hours shorter battery life
    Battery life
    14 hours
    This ereader offers shorter battery life than the average eReader (14 hours vs 21 hours). The average eReader offers 21 hours of battery life.
    Advertised as "up to 2 weeks", actual usage varies depending on standby/shutdown usage
    14 hours vs 21 hours
  • 9 fewer supported file formats
    Supported file types
    6
    This ereader supports fewer file types than the average eReader (6 vs 15).
    6 vs 15
  • 17.3% lower user score
    User score
    6.8/ 10
    ✕
    What it is
    A rating that combines user reviews and the total number of reviews received by the eReader.
    When it matters
    When you want to know how an eReader feels in daily reading and how reliable it is for screen comfort, battery life, and library management according to user feedback.
    Score distribution
    â–¼
    â–¼
    <55-66-77-88-99-10
    Sony Prs 650
    the average eReader
    Sony Prs 650 has a lower user score than the average eReader (6.82 vs 8.000).
    6.82 vs 8
  • 22.4% worse value for money
    Sony Prs 650 has worse value for money than the average eReader (5.95 vs 7.3).
    5.95 vs 7.28
  • 89.9% less popular
    Sony Prs 650 is less popular than the average eReader (2.87 vs 5.4).
    2.87 vs 5.44
  • Less advanced E-Ink technology
    E-Ink technology
    Pearl
    This ereader uses Pearl E-Ink technology, while the average eReader uses Carta Plus.
    Pearl vs Carta Plus
  • No front light
    Front light
    no
    This ereader does not include front light, while the average eReader does. 74% of eReaders include front light.
  • Lower screen resolution
    Screen resolution
    600x800 px
    This ereader supports lower screen resolution than the average eReader (600x800 px vs 1072x1448 px). The average eReader supports 1072x1448 px screen resolution.
    600x800 px vs 1072x1448 px
  • 37% lower pixel density
    Pixel density
    167 ppi
    This ereader has a lower pixel density than the average eReader (167 ppi vs 265 ppi). The average eReader has a pixel density of 265 ppi.
    167 ppi vs 265 ppi
  • No color temperature adjustment
    Color temperature adjustment
    no
    This ereader does not support color temperature adjustment, while the average eReader does. 51.6% of eReaders support color temperature adjustment.
    These models do not have a built-in front light; users needed clip-on lights
  • 1 inches smaller screen size
    Screen size
    6 inches
    This ereader has a smaller screen than the average eReader (6 inches vs 7 inches). The average eReader screen size is 7 inches.
    6 inches vs 7 inches
  • No glare-free screen
    Glare-free screen
    no
    This ereader does not have a glare-free screen, while the average eReader does. 95.1% of eReaders have a glare-free screen.
  • 5 fewer front-light LEDs
    N. of front-light LEDs
    0
    This ereader has fewer front-light LEDs than the average eReader (0 vs 5). The average eReader has 5 front-light LEDs.
    0 vs 5
  • Basic touchscreen technology
    Touchscreen technology
    infrared
    This ereader uses infrared touchscreen technology, while the average eReader uses capacitive.
    infrared vs capacitive
  • Limited bookstore ecosystem
    Supported bookstore ecosystem
    Sony Open Ecosystem
    This ereader uses the Sony Open Ecosystem bookstore ecosystem, while the average eReader uses Android Open Ecosystem.
    Sony eBookstore, Kobo, Google Books, and other Adobe DRM or DRM-free EPUB/PDF stores.
    Sony Open Ecosystem vs Android Open Ecosystem
  • 9 fewer supported file formats
    Supported file types
    6
    This ereader supports fewer file types than the average eReader (6 vs 15).
    6 vs 15
  • No cloud sync
    Cloud sync support
    no
    This ereader does not support cloud sync, while the average eReader does. 80% of eReaders support cloud sync.
    Requires a USB connection to a computer for content transfer; lacks Wi-Fi capability
  • No text-to-speech
    Text-to-speech
    no
    This ereader does not support text-to-speech, while the average eReader does. 64.2% of eReaders support text-to-speech.
  • No folder support
    Folder support
    no
    This ereader does not support folders, while the average eReader does. 54.5% of eReaders support folders.
  • Limited library support
    Library lending platforms supported
    OverDrive
    This ereader supports fewer library lending platforms than the average eReader (OverDrive vs OverDrive, Libby).
    Requires Adobe Digital Editions or manual transfer steps.
    OverDrive vs OverDrive, Libby
  • No parental controls
    Parental controls
    no
    This ereader does not have parental controls, while the average eReader does.
  • Limited DRM support
    DRM schemes supported
    Adobe DRM, BBeB Book
    This ereader supports fewer DRM schemes than the average eReader (Adobe DRM, BBeB Book vs Adobe DRM, Social DRM).
    Adobe DRM, BBeB Book vs Adobe DRM, Social DRM
  • 3 fewer supported languages
    N. of supported languages
    7
    This ereader supports fewer languages than the average eReader (7 vs 10). The average eReader supports 10 languages.
    7 vs 10
  • 7 hours shorter battery life
    Battery life
    14 hours
    This ereader offers shorter battery life than the average eReader (14 hours vs 21 hours). The average eReader offers 21 hours of battery life.
    Advertised as "up to 2 weeks", actual usage varies depending on standby/shutdown usage
    14 hours vs 21 hours
  • 39.9% smaller battery capacity
    Battery capacity
    940 mAh
    This ereader has a smaller battery than the average eReader (940 mAh vs 1565 mAh). The average eReader battery has a capacity of 1565 mAh.
    940 mAh vs 1,565 mAh
  • 87.5% less storage
    Internal storage
    2 GB
    This ereader offers less internal storage than the average eReader (2 GB vs 16 GB). The average eReader provides 16 GB of internal storage.
    2 GB vs 16 GB
  • Less advanced operating system
    Operating system
    MontaVista Linux
    This ereader uses MontaVista Linux, a less advanced operating system than Kindle OS on the average eReader.
    MontaVista Linux vs Kindle OS
  • 0.38 GB less RAM
    RAM capacity
    0.128 GB
    This ereader has less RAM than the average eReader (0.1 GB vs 0.5 GB). The average eReader has 0.512 GB of RAM.
    0.128 GB vs 0.512 GB
  • Slower CPU base clock speed
    CPU base clock speed
    1 x 0.532 GHz
    This ereader has a slower CPU base clock speed than the average eReader (1x0.5 GHz vs 1x1 GHz). The average eReader has a CPU base clock speed of 1x1 GHz.
    1x0.532 GHz vs 1x1 GHz
  • No USB Type-C
    USB Type-C
    no
    This ereader does not have USB Type-C, while the average eReader does. 51.2% of eReaders have USB Type-C.
  • No Bluetooth
    Bluetooth
    no
    This ereader does not have Bluetooth, while the average eReader does. 60.2% of eReaders have Bluetooth.
  • No Bluetooth audio
    Bluetooth audio support
    no
    This ereader does not support Bluetooth audio, while the average eReader does. 57.4% of eReaders support Bluetooth audio.
  • No OTA updates
    OTA updates supported
    no
    This ereader does not support OTA updates, while the average eReader does. 81.7% of eReaders support OTA updates.
  • No Wi-Fi
    Wi-Fi connectivity
    no
    This ereader does not support Wi-Fi, while the average eReader does. 93.5% of eReaders support Wi-Fi.
  • Older Wi-Fi version
    Wi-Fi version
    WiFi not supported
    This ereader supports an older Wi-Fi version than the average eReader (WiFi not supported vs Wi-Fi 4 (802.11n)).
    WiFi not supported vs Wi-Fi 4 (802.11n)
  • No web browser
    Built-in web browser
    no
    This ereader does not include a built-in web browser, while the average eReader does. 91.1% of eReaders include a built-in web browser.
  • Limited Wi-Fi bands
    Wi-Fi bands supported
    no Wi-Fi
    This ereader supports no Wi-Fi Wi-Fi bands, while the average eReader supports 2.4 GHz.
    no Wi-Fi vs 2.4 GHz
  • 11 older
    Release date
    2010
    This ereader is older than the average eReader (2010 vs 2021). The average eReader was released in 2021.
    2,010 vs 2,021
  • 1.5 mm thicker
    Thickness
    9.6 mm
    This ereader is thicker than the average eReader (9.6 mm vs 8.1 mm). The average eReader thickness is 8.1 mm.
    9.6 mm vs 8.1 mm

Video reviews

Hands-on testing, unboxing, and real-world video evaluations

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Third-party reviews

Based on 6 buyer reviews from online shops.
Reviews last updated: October 2026 · How we calculate this

What we like about Sony Prs 650

  • High-contrast E Ink Pearl display with excellent clarity and minimal glare
  • Highly responsive infrared-based touchscreen interface
  • Compact, lightweight, and durable build quality
  • Broad file support including EPUB, PDF, and library ebook compatibility
  • Expandable storage via SD and Memory Stick Duo card slots
  • Faster page turns and performance compared to previous models
  • Integrated 10 dictionaries and versatile note-taking with a stylus
  • Good battery life of up to two weeks on a single charge

What we don't like about Sony Prs 650

  • Lacks wireless connectivity (no Wi-Fi or 3G), requiring USB for transfers
  • Higher price point compared to contemporary competitors like the Kindle or Nook
  • No wall charger or protective cover included in the box
  • PDF handling can be inconsistent depending on document layout
  • Annotations cannot be easily exported to other applications
  • Limited text size and appearance customisation options compared to rivals

Verdict

The Sony Reader Touch Edition PRS-650 features a 6-inch E Ink Pearl touchscreen with 800 x 600 resolution and 16 levels of grayscale, housed in a premium metal body weighing approximately 215g. It includes 2GB of internal storage, dual expansion slots for SD and Memory Stick PRO Duo cards (up to 32GB), and a 3.5mm headphone jack for MP3/AAC audio playback. Main advantages include its highly responsive infrared-based touch interface that eliminates screen glare, a fast processor for quick page turns, and extensive support for formats like EPUB and PDF alongside 12 built-in dictionaries. However, its primary drawbacks are the lack of Wi-Fi or 3G connectivity, requiring a USB tether for book transfers, and a higher launch price compared to contemporary competitors.

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