S680 SOS Function Low Energy Consumption Personal GPS Watch is a great product and we recommend it to you. Before you decide to buy S680 SOS Function Low Energy Consumption Personal GPS Watch, please read our review of this product.
Product Details
- Brand: SEEWORLD
- Model: S680
Features
- High-sensitivity, new workmanship and the most advanced GPS chip
- Supports single positioning and continuous tracking;
- In emergency, press the SOS button to have an accurate positioning
- May monitor without disturbing the tracked person and realizes real-time tracking;
Product Description
GSM module:GSM 850/900/1800/1900 MHz Quad frequency
GPS sensitivity:-163dBm
GPS center frequency:L1, 1575.42MHz
GPS positioning accuracy:5-25m
GSM positioning accuracy:100-500m
Speed accuracy:0.1 m/s
Time accuracy :Synchronous with GPS
GPS Datum:WGS-84
Hot start:less 1s
Warm start:less 38s
Max. altitude :18000m
Max. speed:515m/s
Gravitational acceleration:less than 4g
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