Main features

The Polar A370 now does 24/7 heart rate tracking as well as sleep tracking, the latter using Polar's new 'Sleep Plus' technology. It's designed to be a tracker you keep on all day, all night - even in the shower.

Design

It's hardly a rousing call to the fashion world to up their game, but it's not exactly hideous. The thin loops keep the strap nicely in place, and I've found it perfectly comfortable to wear.

Compatibility

Modern smartwatches like Polar A370 rock in terms of compatibility: because they utilize Bluetooth 4.2 and are created to work on any device, you won’t have any issue connecting to either iPhones or Android devices.

Interface

The screen shows good responsiveness, it's a vibrant, rich display that's easily readable unless the sun is really glaring down on it. Using the A370 is highly intuitive. The display is always asleep until you either raise your wrist or tap the button on the bottom left side.

Battery

Polar promises four days of battery, but that number is a bit conservative. The more workouts you do with it, the faster you're going to drain it. It's still not as good as some others on the market, and that screen is no doubt partly to blame.