About Rand/0
Rand/0 The Pocket Prophet is a smart e-ink device you can carry with you. With shake, dual-button, and NFC interactions, it gives everyday small questions a light nudge forward.
What is Rand/0
Rand/0 The Pocket Prophet is a smart e-ink device you can carry with you.
It is not a serious productivity tool. It is more like a small oracle slip in your pocket. When you get stuck on small questions like “what should I eat today,” “should I go out,” or “should I do this first,” shake it and let the little screen say something first.
The Book of Answers, dice, coin flip, random numbers, and quick decisions can all give you a lightweight result. It does not make the decision for you; it simply helps break the pause and gives you a direction to keep moving.
Current support scope
Rand/0 The Pocket Prophet currently cannot be bound to or used in the Dot App. It also does not support Dot services that are strongly tied to network connectivity, such as the API Open Platform.
If you need to write NFC cards, go to Download Pocket NFC App to get the Android package.
What it can do
- Random decisions: Book of Answers, dice roll, coin flip, random numbers, and quick decisions;
- Daily companion: personality guide, wooden fish, custom lock screen, and other lightweight content;
- Daily hints: daily prompts, lucky colors, do/don't suggestions, and daily status;
- Calendar and time: always-on e-ink display to reduce the need to pick up your phone;
- Practical tools: Bluetooth remote control and NFC card support.
Technical Specifications of Rand/0
| Item | Specification |
|---|---|
| Screen | 1.54-inch e-ink display |
| Resolution | 200 × 200 |
| Pixel density | 184 PPI/DPI |
| Buttons | Dual-button operation, short/long press |
| Buzzer | Supported |
| Product model | RDO-G01 |
| Rated input | 5V⎓0.5A |
| Power | 300 mAh lithium-polymer battery |
| Connectivity | Wi-Fi 802.11b/g/n @ 20MHz, Bluetooth LE 5.3 @ 2Mbps PHY |
| RF frequency range | 2412 ~ 2484 MHz |
| RF transmit power | ≤20dBm (EIRP) |
| Dimensions | 53.5 × 42.3 × 11.7 mm |
| OTA updates | Supported |
| Supported languages | Simplified Chinese, English |
| Interactions | Instant lock screen image, shake |
Use and Care
- The display uses glass; please protect it from impact and scratches.
- This product is for entertainment use only. It helps you explore yourself through playful interactions and does not constitute a professional assessment or value judgment.
- To improve display quality and reduce ghosting, the screen may occasionally perform a full refresh.
- When cleaning the product, avoid water ingress. Dirt on the product or screen surface can be wiped with a soft cloth moistened with a neutral detergent.
- Keep the device away from high temperature, high humidity, extreme cold, and other harsh environments.
- Do not immerse the product in water.
- Do not replace the battery yourself, as this may cause a fire hazard.
- When the low-battery prompt appears on the screen, charge it with USB Type-C as soon as possible.
- Device firmware can be updated through Wi-Fi OTA in Settings. You can view the current firmware version and battery percentage in System Version.
Notes
- E-ink displays are suitable for always-on, low-refresh content, not for frequent animation or rapidly changing visuals.
- Wi-Fi, Bluetooth, NFC, and shake interactions may be affected by the device system, network environment, and how the device is used.
Related Pages
Features
Browse Rand/0 built-in feature pages
Getting Started
Learn button controls, carrying options, and package contents
Custom Wallpaper
Change the lock screen image from your phone
Bluetooth Remote
Control e-readers, phones, and computers over Bluetooth
Download Pocket NFC App
Get the Android package for the Rand/0 companion NFC utility app
Update and Reset
Update the device, reset the device, or view the changelog
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