Independent product discoveryRetailers handle checkout, delivery and returns

Pick 003 · XTEINK X4 Pro

XTEINK X4 Pro

Pocket-sized reading. Daylight to lights-out.

Research Pick · Not hands-on tested

Affiliate link: Renvaryn may earn a commission from qualifying purchases, at no extra cost to you.

Why it earns a place

Three reasons to choose it.

Carry less.

XTEINK lists a 4.3-inch screen and 72g body. The magnetic back attaches to compatible phones, cases and accessories; fit depends on your setup.

Read after dark.

Adjust the front light’s brightness and warm/cool tone without a separate lamp. The smaller X3 has no built-in light.

Choose your controls.

Tap through menus or use physical buttons to turn pages—two useful options on a small reader.

Specifications are manufacturer figures. Our research and sources

Worth knowing before you buy.

  • For your own book files. The detailed specification lists EPUB and TXT. Protected purchases and subscriptions do not automatically transfer; the small screen is less suited to complex PDFs.
  • Pack the right connection. Uses pogo-pin charging, not a USB-C socket on the reader. The listed magnetic adapter is included; the FAQ says no charging cable.
  • Allow delivery time. XTEINK quotes 1–5 days processing plus 5–10 business days European transit, as estimates.
  • Understand return costs. The retailer lists 30-day return requests and a one-year warranty. Its policy makes return shipping customer-paid and states no restocking fee for ordinary returns; a separate 50% fee can apply to failed delivery caused by customer error. Original packaging and unused accessories are required. Confirm the return address.
Will your books work? Our clear compatibility guide →
What does the extra £30 buy?

Choose Pro for night lighting, a larger screen and touch controls; X3 for minimum size and weight. The price gap may change. Pro’s larger battery is not proof of proportionally longer runtime.

Colour and bundle availability

Space Black reader and both Base bundles available. Checked 16 Oct 2026. The price above is for Space Black · reader only; other configurations can differ.

Compare the alternatives

The X4 Pro is £30 more at the UK prices checked on 16 October 2026. Its main upgrades are a larger screen, a front light and touch controls. The X3 is smaller and lighter, with higher pixel density. All six advertised X3 configurations were available. Prices are snapshots; specifications are manufacturer figures.

XTEINK X4 Pro: £99 · XTEINK X3: £69 — prices checked 16 Oct 2026.

Buying questionXTEINK X4 ProXTEINK X3
UK price checked 16 Oct 2026£99 sale · £109 regular£69 sale · £79 regular
Display4.3-inch E Ink3.7-inch E Ink
Pixel density219 PPI259 PPI
Weight72 g58 g
Dimensions111 × 69 × 5.95 mm97.6 × 63.7 × 5.1 mm
ControlsTouchscreen + buttonsButtons + gyroscope page-turn; no touch
Built-in front lightYes, warm / coolNo
Magnetic backYes; compatible setupsYes; compatible setups
Battery capacity1,100 mAh650 mAh
Included / maximum storage16GB / 256GB microSD16GB / 256GB microSD
Charging connectionPogo pinPogo pin
Likely fitReading across different light levelsMaximum portability in available light
Setup and everyday use
  1. Start with compatibility. The detailed specification lists EPUB and TXT documents. Do not assume protected purchases or subscriptions transfer across.
  2. Import your files. XTEINK describes transfer through its companion app or computer USB mode, using the device’s magnetic charging connection.
  3. Set the light and text. Adjust brightness, warm/cool tone and your preferred reading view. Use touch for menus or the physical buttons to turn pages.
  4. Find your daily carry setup. Keep it in a pocket or pair it with a compatible magnetic phone/case. Developer features are optional; the core job is reading your books.
E Ink display
4.3 inches
Manufacturer-listed weight
72 g
Adjustable warm / cool light
Front light
Two ways to navigate
Touch + buttons

Your library is the first buying check. XTEINK’s current detailed specification lists EPUB and TXT documents. Its buying guidance asks readers to confirm PDF, MOBI and DRM requirements for their intended firmware. Ask about your actual files; do not buy on the assumption that a store app can be installed.

Choose the view that suits your reading. The compact screen makes it easy to keep a book close. If you prefer generous text sizes or complex layouts, compare the physical screen size with your current reader so the pocket format works for you.

Check the charging kit, not just the battery. The specification lists a 1,100mAh battery and pogo-pin connection. The current box list includes a magnetic adapter; the FAQ says no charging cable is included. We have not tested battery endurance.

Check the fit of your actual phone. XTEINK describes magnetic attachment with compatible phones and accessories. It does not mean every phone or case is a perfect match. Ask about your setup before adding accessories.

More questions, answered

What warranty and return support is listed?

The retailer lists 30-day return requests and a one-year warranty. Its policy makes return shipping customer-paid and states no restocking fee for ordinary returns; a separate 50% fee can apply to failed delivery caused by customer error. Original packaging and unused accessories are required. Confirm the return address.

Can it attach magnetically to my phone?

It has a magnetic back for compatible phones, cases and accessories. Confirm your particular setup with XTEINK, including camera clearance. Attachment magnets are not a promise of wireless charging.

Can I read in the dark?

Yes, XTEINK specifies a built-in front light with adjustable brightness and warm/cool tone on the X4 Pro. The X3 has no built-in front light and needs ambient or an external reading light.

How much does it cost in the UK?

We observed £99 for X4 Pro (displayed regular price £109) and £69 for X3 (displayed regular price £79) on XTEINK’s UK/GBP listings on 16 October 2026. These are dated product-price snapshots, not a live or delivered-price guarantee. Confirm the total at checkout.

Is the X4 Pro currently available?

Yes at the latest dated check: on 16 October 2026, XTEINK showed the Space Black reader and both Base bundles available. Confirm the exact option before paying.

Is this a Kindle replacement?

Not automatically. XTEINK describes a local-file reader, not a guarantee that your existing bookstore, subscription or library account will work. We would check that first.

Why focus on X4 Pro rather than X3?

The Pro’s built-in light, larger screen and touch controls suit reading across different places and light levels. The smaller, lighter X3 remains worth comparing if minimum size matters more to you.

Does it have a normal USB-C socket?

The manufacturer lists pogo-pin charging. Check the current adapter and cable requirements before ordering; do not assume your usual USB-C cable plugs directly into the reader.

Can I use different firmware?

XTEINK says units bought through its official site are exempt from third-party firmware restrictions. That is an option for experienced users, not a guarantee of extra app, book-store or DRM compatibility. Check support and warranty implications before making changes.

Has Renvaryn tested it?

Not yet. This guide combines manufacturer documentation, supplied affiliate creative descriptions and our own buying analysis. We have not independently measured performance or verified long-term reliability.

How we evaluated it & sources

We compared the X4 Pro and X3 specifications, book workflows, portability, lighting and UK ownership terms.

Research and buying analysis by Renvaryn · Source check: 16 October 2026. Editorial responsibility: Mayank Ramnauth.

What remains untested: We have not tested transfers, reading comfort, battery life or long-term reliability. PDF, MOBI and DRM requirements remain unconfirmed for the intended firmware.

This is a Research Pick. Read our evidence standards or suggest a correction.

Sources reviewed: X4 Pro UK price, features and FAQ · XTEINK’s X4 Pro buying guidance · X3 UK price and specification · Shipping policy · Returns and warranty policy

Renvaryn is an approved XTEINK affiliate through Impact. Purchase buttons use our affiliate link; qualifying purchases may earn us commission at no extra cost to you. XTEINK handles checkout, delivery, returns and support.

Opens the X4 Pro product page through our Impact affiliate link. On 16 October 2026, the £99 Space Black reader and both £110.83 Base bundles were available. Each bundle displayed a £120.83 regular price. Confirm any gift, the selected variant and delivered total with XTEINK.

Update history: 7 September 2026: replaced a generic sold-out reading with exact-variant stock data. 15 September 2026: all X4 Pro variants appeared unavailable. 16 September 2026: the selected Space Black reader and both X4 Pro base bundles returned to stock. 18 September 2026: all three configurations appeared sold out. 19–21 September 2026: Space Black and the Mist Sage base bundle were available; the Space Black base bundle remained sold out. On 22 September 2026, all three X4 Pro configurations appeared available. On 23 September, Space Black and the Mist Sage base bundle were available while the Space Black base bundle was sold out. The £99 X4 Pro, £69 X3 and all six X3 configurations were also reverified on 23 September. On 24 September, all three X4 Pro configurations were available again; the X3 Mist Gray price and availability were checked separately. On 27 September, all three X4 Pro configurations and all six X3 configurations were available. On 29 September, the selected X4 Pro and both £110.83 base bundles remained available; X4 Pro and X3 selected prices remained £99 and £69, and all six X3 configurations were listed. On 30 September, the £99 Space Black reader and £110.83 Space Black Base bundle were available, while the £110.83 Mist Sage Base bundle was unavailable. On 5 October, the £99 Space Black reader and £110.83 Mist Sage Base bundle were available while the £110.83 Space Black Base bundle was unavailable; five of six X3 configurations were available. On 9 October, the £99 Space Black reader, both £110.83 Base bundles and all six X3 configurations were available. On 15 October, X4 Pro prices/availability were unchanged; five X3 configurations were available, with the Mist Gray reader/Mist Gray Base/adapter package unavailable. On 16 October, all six X3 configurations were available again; X4 Pro price/stock remained unchanged. Current returns and VAT/customs wording replaces the earlier policy summary.

XTEINK X4 Pro

Your next chapter, close at hand.

Affiliate link: Renvaryn may earn a commission from qualifying purchases, at no extra cost to you.

Buy Here at XTEINK — XTEINK X4 Pro (opens in a new tab)

Price, delivery and checkout at XTEINK.

Your next discovery

Good finds.
Less searching.

Useful products and clear buying advice, straight to your inbox. Free newsletters when there’s something worth sharing.

RenvarynYour next discovery

Great finds.
Straight to your inbox.

A welcome email, an introduction to the original OutIn Nano a week later, then fresh discoveries when our next edition is ready.