Pros & Cons
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- Stylish design.
- Good sleep tracking.
- Useful Smart Coach feature.
- Makes payments via NFC.
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- No display.
- Not particularly comfortable.
- No heart rate measurements on demand or during activities.
- NFC payments require Amex.
- Relatively pricey.
Jawbone UP4 Specs
| Battery Life | 7 days |
| Compatibility | Android |
| Compatibility | iOS |
| Heart Rate Monitor | |
| Sleep Tracker |
The Jawbone UP4 ($199.99) is a sleek wrist-worn fitness tracker that can record your passive heart rate, monitor your steps and sleeping habits, and let you make payments at the checkout counter. But it doesn't offer continous or on-demand heart rate monitoring, and it's pretty pricey for what you get. If you're not already invested in the Jawbone UP ecosystem, you'll get a lot more value for your dollar with our Editors' Choice, the Fitbit Surge.