Basic Info |
| Wear Type | Chest Strap | Wristband | |
| Price | | | |
| Ratings | | | |
Activity & Fitness |
| Activity | Yes | Yes | Both track daily activity |
| Calories | No | Yes | Sigma Sport Onyx Easy provides estimated calorie burned data |
| Sleep | No | No | Both don't monitor sleep pattern |
| Heart Rate / Pulse | Yes | Yes | Both have built in heart rate sensor |
| Distance | No | No | Both don't have stride length tracking |
| Steps | No | No | Both don't count your steps |
| Stairs / Floors | No | No | Both don't track climbing stairs or floors |
| Exercise Tagging | No | No | Both don't have exercise tagging |
| Smart Coach | No | No | Both don't have coaching feature |
| 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 | Yes | Only Sigma Sport Onyx Easy has a watch |
| Alarm Clock | No | Yes | Sigma Sport Onyx Easy has a alarm clock |
| Reminders | No | No | Both don't have reminder |
| Stopwatch | No | Yes | Sigma Sport Onyx Easy has a stopwatch |
| Music Playback | n/a | No | Both don't have music playback |
| Reports | Activity | Activity | |
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 | 6 days | n/a | |
| Battery Type | Replaceable Cell Battery | Replaceable Cell Battery | |
Physical Specs |
| Weather Resistance | Yes | Yes | |
| Waterproof | No | Yes | |
| IP Rating | n/a | n/a | |
| Weight | n/a | 113 grams | |
User Interface |
| Display | No | LCD Screen | |
| Display Size | | n/a | |
| Screen Resolution | |
n/a
| |
| Color Display | No | No | |
| Touch Screen | No | No | |
Compatibility |
| Android | Yes | No | Polar WearLink+ is compatibles with Android phones and tablets |
| iOS | No | No | Both don't compatible iOS devices |
| 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 Polar WearLink+ 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 | |
