RK X40E MagSafe Magnetic Rear Selfie Screen: 4-inch HD display
Meet the RK-X40E MagSafe Magnetic Rear Selfie Screen—your new best friend for nailing those perfect selfies without the awkward arm angles. This little powerhouse boasts a 4-inch HD display that’s so crisp, you’ll forget it’s not your main screen. And guess what? It’s got 2.4G/5G WiFi wireless screen projection (because cords are so last decade), letting you mirror your phone’s screen smoothly from up to 5-20m away. No more running back and forth to check your pose—just snap remotely with the built-in photo button. Plus, that strong magnet isn’t messing around; it sticks like glue, so your gadget stays put.
Worried about battery life? Don’t be. With an 1800mAh battery, you’re looking at 2-4 hours of uninterrupted selfie sessions. And when it’s time to recharge, the Type-C charging port has your back—no fumbling with cables in the dark. Oh, and did we mention it looks like a legit camera? Yeah, it’s not just functional; it’s a stylish accessory that’ll make your gadget collection the envy of your friends.
Features
- 2.4G/5G WiFi wireless screen projection
- Built-in photo button
- Built-in strong magnet
- 1800mAh battery
- Type-C charging port
- 4-inch HD display
General specs
- Brand: RK
- Model: X40E
- Seller: Sunsky
- ID: 3843731
- Material: PC+TPR
- Screen: 4-inch HD
- Input: 5V 1A
- Rated power: 1.85W
- Battery capacity: 1800mAh
- Use time: 2-4 hours
- Charging port: Type-C
- Wireless network: 2.4G/5GHz dual-band
- Bluetooth: 5.0
- Compatible system: iOS 9.0+, Android 2.0+
- Boot language: Chinese, English
- Size: 107x66x12.5mm
- Weight: 100g
- First listed by seller: 6/18/25
If you are interested in more details, you can find full information on the seller's page.
Price History for seller Sunsky
| Date | Price |
|---|---|
| 8/2/25 | $18.73 |
| 6/18/25 | $18.70 |
Shipping options
India
Comparison with similar products
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|---|---|---|---|---|---|---|
RK X40E 4-inch HD display
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Unihertz Tank mini 1 4.3 inch TFT LCD screen
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Huawei 90 5G REA-AN00 6.7 inch OLED screen
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| Brand | RK | Unihertz | Honor | Huawei | Huawei | |
| Model | X40E | Tank mini 1 | X40 5G RMO-AN00 | 90 5G REA-AN00 | Mate 50 RS | L801 |
| Color | ||||||
| Rating |
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| Price | $18.73 | $219.00 | $323.00 | $414.04 | $1,020.00 | $46.49 |
| Seller | Sunsky | Sunsky | Sunsky | Sunsky | Sunsky | Sunsky |
| Update | August 30, 2025 | May 31, 2025 | September 15, 2025 | November 26, 2025 | November 5, 2025 | December 6, 2025 |
| Battery | Non-Removable 5800mAh Battery | 5100mAh | 4700mAh | |||
| Processor | Snapdragon 695 octa core 2 x A78 x 2.2GHz + 6 x A55 1.8GHz | Qualcomm Snapdragon 7 Gen 1 Accelerated Edition octa core | Qualcomm Snapdragon 8+ Gen1 4G octa core | |||
| Network | 5G NR N1/N28/N38/N41/N77/N78/N79 | 5G, OTG, NFC | 4G LTE | |||
| Operating System | Magic UI 6.1 / Android 12 | Magic UI 7.1 Android 13 | HarmonyOS 3.0 | |||
