Basic Info |
| Wear Type | Wristband | Chest Strap | |
| Price | | | |
| Ratings | | | |
Activity & Fitness |
| Activity | No | No | Both don't have activity tracking |
| Calories | No | No | Both don't track calories burned |
| Sleep | Yes | No | Lark Pro Sleep Monitor tracks your sleeping time and quality |
| Heart Rate / Pulse | No | Yes | Polar H1 has the heart rate monitoring sensor |
| Distance | No | No | Both don't have distance tracking |
| Steps | No | No | Both don't have steps counting feature |
| Stairs / Floors | No | No | Both don't track climbing stairs or floors |
| Exercise Tagging | No | No | Both don't have exercise tagging |
| Smart Coach | Yes | No | Lark Pro Sleep Monitor provides real time fitness coaching |
| Goal Setting | No | No | Both don't have goal setting |
| Inactivity Alert | No | No | Both don't have inactivity alerts |
Additional Features |
| GPS | No | No | Both don't have built-in GPS support |
| Compass | No | No | Both don't have a compass |
| Watch / Clock | No | No | Both don't have watch |
| Alarm Clock | Yes | No | Lark Pro Sleep Monitor has a alarm clock |
| Reminders | Yes | No | Lark Pro Sleep Monitor has a reminder option |
| Stopwatch | No | No | Both don't have stopwatch |
| Music Playback | No | No | Both don't have music playback |
| Reports | Sleep | | |
Smartphone Remote Features |
| Notifications | No | No | Both don't have phone notifications |
| Caller ID | No | No | Both don't show caller ID notification |
| Music Control | No | No | Both don't have phone music control |
| Call Control | No | No | Both don't have call control |
| Camera Control | No | No | Both don't have camera control |
| Find Phone | No | No | Both don't have a find phone feature |
Battery |
| Duration | 2 days | 60 days | Polar H1 battery life is about 30.0 times longer |
| Battery Type | Rechargeable Battery | Replaceable Cell Battery | |
Physical Specs |
| Weather Resistance | No | Yes | |
| Waterproof | No | No | |
| IP Rating | n/a | n/a | |
| Weight | n/a | n/a | |
User Interface |
| Display | No | No | |
Compatibility |
| Android | No | No | Both don't compatible with Android devices |
| iOS | Yes | No | Lark Pro Sleep Monitor can connect with iPhones or iPads |
| OS X/Mac | No | No | Both don't compatible MAC OS X devices |
| Windows Phone | No | No | Both don't compatible with Windows Phone devices |
| Windows | No | No | Both don't have a find phone feature |
| Web Portal | No | No | Both don't have online web portal option |
| Social Features | No | No | Both don't have social features |
Connectivity |
| Bluetooth | Yes | No | Only Lark Pro Sleep Monitor has a built-in Bluetooth connection option |
| Wi-Fi | No | No | Both don't have Wi-Fi connection |
| NFC | No | No | Both don't have NFC connectivity |
| ANT+ | No | No | Both don't provide ANT+ wireless technology |
| Buy on Amazon | Buy on Amazon | |
