Xteink X3 Review: iPhone E-Reader (3.7″, 250 PPI, 58g)
Xteink X3 is a compact magnetic e-reader that turns an iPhone into a portable reading device with a 3.7-inch E-Ink screen, expandable storage, and multi-day battery life.
Xteink X3 Specifications
| Feature | Specification |
|---|---|
| Display | 3.7-inch E-Ink, 250+ PPI |
| Dimensions | 98 × 64 × 4.98 mm |
| Weight | 58 g |
| Storage | 16GB microSD included |
| Battery | 650 mAh, up to 10–14 days |
| Price | $79 |
Design and Compatibility
Xteink X3 attaches magnetically to compatible smartphones, including newer iPhone models that support MagSafe-style alignment. Its light 58-gram design keeps the phone pocketable while adding a second reading-focused display.
The accessory also supports features such as NFC and a motion-based page-turning function, which makes reading possible without relying on a touchscreen on the reader itself.
Storage and Battery Life
- 16GB microSD card included, with room for a larger library.
- Support for common reading and image file formats.
- 650 mAh battery rated for around 10 to 14 days of typical use.
- Compact charging setup designed for portable daily carry.
Pros and Cons
Pros
- Very compact and lightweight.
- E-Ink screen is easier on the eyes than a phone display.
- Affordable entry price.
- Long battery life for casual reading.
Cons
- No front light for dark environments.
- No full touchscreen interaction on the reader.
- Niche product aimed at a specific use case.
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Glossary
- Qi2
- A wireless charging and magnetic alignment standard for compatible devices.
- NFC
- Short-range wireless communication used for quick pairing and data exchange.
- Gyroscope
- A motion sensor that can detect device movement for gesture-based actions.