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- Apple Watch Series 3 - [+] altimeter | built-in cellular connectivity | design | heart rate monitoring | music storage | watchOS 4 | waterproof [-] battery life | no sleep tracking
- [buy]
- Fitbit Charge 4 - [+] android and iOS compatible | better activity tracking | built-in GPS | built-in heart rate monitor | colors - black or rosewood | comfortable | design | grayscale OLED touchscreen | lightweight | NFC | replaceable band | responds quickly to swipes | sleek | sleep tracking | slim | water resistant [-] battery life | no music storage | reading the display outdoors
- [buy]
- Fitbit Charge 3 - [+] battery life | budget/inexpensive | casual tracker | large screen | sleep tracking | SpO2 sensor sleep analyzer | three sizes - for different wrist sizes | touchscreen | waterproof | works with iOS and android [-] limited watch faces | monochrome | no built-in GPS | no music storage | optional NFC
- [buy]
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