High Quality SOS Function Two-way Communication Function Personal GPS Sport Watch for Kids and Elder,senior Citizen S680 is a great product and we recommend it to you. Before you decide to buy High Quality SOS Function Two-way Communication Function Personal GPS Sport Watch for Kids and Elder,senior Citizen S680, please read our review of this product.
Product Details
- Amazon Sales Rank: #388645 in GPS or Navigation System
- 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
(2). Others
Operating temperature:-20---65°C
Humidity:5%---95%
Dimensions:64.5mm×45.5mm×17.5 mm (main unit)
Voltage:Rechargeable 450mAh battery
Power supply:DC5V
Standby time:more than 48h
Buttons：
SOS button for emergency aid;
Call 1, Call 2, Switch on / off buttons, interface switch button
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