Key Specifications
General
Model: M99 Smartwatch �
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Operating System: Android 10.0 / Android Wear �
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CPU: SC8541E Quad-Core (≈1.4 GHz) �
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Dimensions: ~48 mm × 47 mm × ~14 mm �
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Display
Screen Type: AMOLED Touchscreen �
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Display Size: 2.4 inch �
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Resolution: 720 × 720 (300 PPI, 600 nits brightness) �
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Shape: Square �
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Memory & Storage (varies by version)
RAM Options: 3 GB
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ROM Options: 32 GB
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Battery & Power
Battery Capacity: ~1100 mAh
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Battery Life: ~1-2 days typical (varies by usage) �
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Connectivity
Cellular: Yes – 4G/5G Full Netcom (2G/3G/4G/5G bands supported on many versions) �
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SIM Card: Yes (nano-SIM) �
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GPS: Yes — dual-band (L1+L5) with multi-satellite support �
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Wi-Fi: Yes �
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Bluetooth: v4.2 or v5.0 depending on model �
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NFC: Yes (some versions) �
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Sensors & Health Tracking
Heart rate monitor �
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Blood oxygen (SpO2) monitor �
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Blood pressure monitor �
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Sleep tracking, activity tracking �
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Camera
Rear Camera: ~8 MP rotating (approx. 190° swivel) �
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Other Features
Call & SMS support direct from watch �
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Bluetooth calling �
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Music control & interactive music �
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Compass, calendar, alarm, countdown & calculator �
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Multiple sports modes �
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Body & Materials
Case Material: Alloy �
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Band Material: Silicone (detachable) �
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Water Resistance: IP67-level “life waterproof” (splash/swim-level) �
