Smartwatch Specifications – Model B31M
Core Parameters
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Operating System: Android 8.1
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Chipset: UNISOC SL8541E
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Quad-core Cortex-A53, up to 1.4GHz
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GPU: Mali T820 MP1 @680MHz
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Memory: 2GB RAM + 16GB ROM (eMCP, 667MHz LPDDR3)
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Display: 2.02" IPS, 320 × 385 resolution
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Glass: Truly
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Touch: Two-point capacitive
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Bluetooth: V2.1 + EDR / V4.2 Low Energy
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WiFi: 2.4GHz, 802.11b/g/n
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GPS: GPS / Beidou / GLONASS
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SIM Card: Nano SIM, single slot
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Microphone: Wired
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Speaker: Receiver/Speaker 2-in-1
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Battery: 730mAh Li-ion Polymer
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Charging time: ~2h
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Usage: 1–2 days
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Standby: 3–5 days
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Charging Method: Magnetic 2-pin Pogo base
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Buttons: Power (double-tap screenshot), encoder/return key
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Water Resistance: Not specified
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Size: 50.08 × 43.75 × 16.9 mm
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Sensors:
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Heart Rate (HX3301)
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3-axis Accelerometer
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Camera: Pull-out 190° rotating, 2MP
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NFC: Supported
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External I/O: Charging/Data/Download/Power via expansion connector
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Torch: Software-based only
Network Bands
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2G: B2, B3, B5
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3G: B1, B2, B5, B8
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4G:
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FDD-LTE: B1, B2, B3, B4, B5, B7, B8, B12, B17, B20, B28
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TDD-LTE: B38, B39, B40, B41
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Functions
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Bluetooth Calling
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SIM Calling / Messaging
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Step Counter
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Sleep / Heart Rate / Blood Pressure / Blood Oxygen Monitoring
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Breathing Training
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Sedentary Reminder
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Voice Assistant (iFlytek)
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Weather / Alarm / Music / Calendar / Calculator
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Browser / Gallery / Recorder / Video Playback
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Remote Photography
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Flashlight (software based)
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App Store (Zitong Market, Tencent MyApp)
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OTA Updates
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Power Saving Mode
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3rd Party App Support: TikTok, WeChat, Alipay, QQ, Migu Music, Water Eject, etc.
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Input Method: Sogou Keyboard
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Course Schedule / Add Friends
Multimedia & Formats
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Audio: MP3, AAC, AAC+, WMA, DRA, AMR-NB
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Image: JPG, JPEG, BMP
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Video Decode: 1080p @30fps
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Formats: H.264, MPEG4, VP8, H.263
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Video Encode: H.264, MPEG4
Languages
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Interface Languages: Not specified
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Manual Languages: Not specified
Packaging & Certification
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Charging Base: Magnetic suction with 2-pin Pogo
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Certification: CCC (ID: 2023201606000481)
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Available Colors: Silver, Black
