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An invisible OLED touchscreen appears when you double-tap the front of the device.
The screen can be difficult to read in some environments and I found the double tap action didn't always wake it up.
The tracker was very accurate, although it tended to overestimate the distance I walked.
To test this, I walked on a treadmill for a mile and compared the mileage from the treadmill to the mileage recorded on the Vivosmart.
, a GPS running watch with activity tracking built-in.
Now there's the Vivosmart, an activity tracker that can receive vibration alerts for phone calls, text messages and emails from your smartphone.
To begin recording sleep at night, you must double tap the display, then perform a long-press, select the moon icon and enable sleep mode.
Once it has been enabled, the band will simply record your movement throughout the night.
To ensure it won't fall off, Garmin includes a secondary security slider the company calls a Vivokeeper.
Just like the Vivofit, the Vivosmart is waterproof up to 5 ATM, meaning it can be worn while swimming and in the shower.
I did notice, however, that while in the shower the screen was frequently tricked into turning on when water droplets fell on it.
This test was performed three times to ensure accuracy.
For things to remain consistent, I used the same exact treadmill each time and walked at the same exact speed (3.5 mph, to be exact, about a 17-minute pace).
There is also Bluetooth on board to connect with your Android or i OS device.