Kobo Clara BW vs Sony Reader Touch Edition PRS-650

Every spec side by side, from each maker's published figures.

Only show differences

Better figure, where one is clearly better

Share comparison

Clara BW compared with Reader Touch Edition PRS-650

	KoboClara BW	SonyReader Touch Edition PRS-650
Overview
Released
Released	April 2024	September 2010
Screen
Screen size
Screen size	6″	6″
Resolution
Resolution	1448 × 1072	800 × 600
Sharpness
Sharpness	300 pixels per inch (better)	167 pixels per inch (calculated)
Colour
Colour	No	No
Front light
Front light	Yes, adjustable warmth	No
Display detail
Display detail	E Ink Carta 1300 HD touchscreen, glare-free; Dark Mode; 300 ppi (The eBook Reader; Kobo lists only the resolution)	E Ink Pearl electronic paper with 16 greyscale levels and optical touch sensing
Front light
Front light	ComfortLight PRO, adjustable brightness and colour temperature	No built-in light; optional illuminated cover
Page turns and refresh
Page turns and refresh	–	Finger swipe or physical page-turn buttons; six font sizes and adjustable contrast
Reading and writing
Stylus
Stylus	No	Yes
Page-turn buttons
Page-turn buttons	No	Yes
Audiobooks
Audiobooks	Yes	Yes
Storage
Storage	16 GB (better)	2 GB
Software
Software	Kobo	Other
Formats
Formats	15 formats natively (EPUB, EPUB3, FlePub, PDF, MOBI, JPEG, GIF, PNG, BMP, TIFF, TXT, HTML, RTF, CBZ, CBR)	EPUB, PDF and TXT; Japanese version also supports XMDF and .book content; JPEG, GIF, PNG and BMP images
Book store
Book store	Kobo Store; Kobo Plus subscription	Sony Reader Store at launch; books transferred through a computer
Stylus
Stylus	–	Included touch pen for annotations and handwritten memos
Note taking
Note taking	–	Handwritten annotations, highlights, bookmarks, text notes and dictionary lookup
Library loans
Library loans	OverDrive and Libby in select countries	–
Connections and battery
Battery life (maker's claim)
Battery life (maker's claim)	Up to 7.6 weeks	Up to 2.5 weeks
Battery life detail
Battery life detail	Up to 53 days at 30 minutes of reading a day, front light at 10% and wireless off; 1500 mAh	Built-in lithium-ion battery; up to 2.5 weeks reading 30 minutes per day under the maker's revised test, or approximately 10,000 continuous page turns; older test claimed 14 days at 75 minutes per day
Charging
Charging	USB-C	Micro-USB computer charging approximately 3 hours; optional PRSA-AC1 adaptor approximately 2 hours
Connectivity
Connectivity	Wi-Fi 802.11 ac/b/g/n (2.4 and 5 GHz), Bluetooth, USB-C; 1.0 GHz processor	Micro-USB, SD up to 2 GB and SDHC up to 32 GB, Memory Stick PRO Duo; no Wi-Fi or 3G; approximately 1.4 GB user-accessible internal storage
Audio
Audio	Kobo Audiobooks over Bluetooth headphones or speaker (select countries)	Stereo headphone socket for unprotected MP3 and AAC, including compatible spoken-word files; no Audible DRM support stated
Design
Weight
Weight	174 g (better)	215 g
Water resistance
Water resistance	IPX8	–
Materials
Materials	Exterior of at least 85.5% recycled content, including 10% ocean-bound plastic; repairable	–
Water resistance detail
Water resistance detail	Waterproof for up to 60 minutes in up to 2 metres of water	–
Size
Size	112 × 160 × 9.2 mm	118.8 × 168 × 9.6 mm excluding projections; maximum 119.1 × 169.6 × 10.3 mm
Colours
Colours	Black	Silver, red and black, depending on region
In the box
In the box	–	Touch pen, USB cable, two dummy memory cards and documentation