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Line up the Xteink you're deciding between

Add or drop a column. Specs and colours sit in the same table. Turn on Differences only to hide matching rows. Share the URL and your picks stay in it.

Each value is marked by how confirmed it is. Prefer the static table? See the whole lineup

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Available
Xteink X4 Pro frontXteink X4 Pro
$99
DetailsBuy
Discontinued
Xteink X4 frontXteink X4
$69
Details
Available
Xteink X3 frontXteink X3
$69
DetailsBuy
Colours
Space BlackWhite?
Space BlackMist Gray
Space BlackMist Gray
OS / platformXTOS (non-Android)Proprietary firmware*Proprietary firmware*
Screen4.3" E Ink, 219 PPI4.3" E Ink3.7" E Ink
Resolution219 PPI220 PPI259 PPI
Front lightYes, adjustable brightness + warm/coolNoNo
TouchscreenYes + side page-turn buttonsNoNo
ChipNot disclosed?ESP32ESP32-based*
Storage16 GB microSD, exp. 256 GB16 GB microSD, exp. 256 GB16 GB microSD, exp. 256 GB
ChargingMagnetic pogo-pinUSB-CMagnetic pogo-pin
Battery1,100 mAh650 mAh650 mAh
Dimensions111 × 69 × 5.95 mm114 × 69 × 5.9 mm97.6 × 63.7 × 5.1 mm
Weight72 g77 g58 g
Thickness5.95 mm5.9 mm5.1 mm
Magnetic mountYes, built-in magnetic backplateYesYes
Price$99$69$69
No mark Confirmed on xteink.com * Press-reported, not yet on the official store ? Rumored / unconfirmed

X3, X4, and X4 Pro specs and colours are verified against xteink.com (July 2026); the X4 Pro white finish appears in a launch render but isn't a buyable option yet. S4 details are compiled from press and community sources. Independent list, not affiliated with Xteink.

The short version

All three are pocket E Ink readers. They differ on size, charging, and whether they have a light. One line on each, then the buy guides if you want a verdict.

Want a pick, not a spec sheet? Read Xteink X3 vs X4: choose by carry style or Xteink X4 vs X4 Pro vs S4: which to buy in 2026.

Official Xteink

The X3 is the one you can buy today

15case is 15% off plus a free case. X4 Pro restocks in waves.

Compare the lineup on the device hub .

Common questions

What is the difference between the Xteink X3 and X4?
The X4 has the larger 4.3-inch E Ink screen and charges over standard USB-C; the X3 is smaller (3.7-inch, 58 g) and charges through a proprietary magnetic pogo-pin cable. Neither has a front light or a touchscreen; those arrived with the X4 Pro. The X3 is $69 (list $79) and is the button-only model you can buy. The original X4 is discontinued (last official price $69).
Which Xteink has a front light?
Only the Xteink X4 Pro ($99), launched July 21, 2026. It is the first pocket Xteink with an adjustable warm/cool front light and a touchscreen; the X3 and X4 have neither.
Which is the smallest Xteink e-reader?
The X3 is a 3.7-inch, 259-PPI E Ink reader weighing 58 g, designed to ride on the back of your phone via magnets. The X4 and X4 Pro use a larger 4.3-inch screen.
Do any Xteink readers charge over USB-C?
Only the original X4, which is discontinued. The X3 and X4 Pro both charge through a magnetic pogo-pin connector; the X4 Pro includes a magnetic adapter but no cable in the box. If plain USB-C is a hard requirement, look for a used X4 or wait for a future USB-C model. Do not treat the discontinued X4 as something you can order new.
Which Xteink should I buy?
For most people, the X3 at $69. The original X4 is discontinued. Pick the X4 Pro at $99 if you read in the dark and want a front light plus a touchscreen. The X3-vs-X4 and X4-vs-X4-Pro-vs-S4 guides cover the rest.