Basic Info |
| Wear Type | Wristband | Wristband | |
| Price | | | |
| Ratings | | | |
Activity & Fitness |
| Activity | Yes | Yes | Both track daily activity |
| Calories | Yes | Yes | Both track calories burned |
| Sleep | Yes | Yes | Both track sleep pattern |
| Heart Rate / Pulse | Yes | Yes | Both have built in heart rate sensor |
| VO2 Max | No | Yes | You can monitor your VO2 max with TomTom Runner 3 Cardio + Music |
| Distance | Yes | Yes | Both track your running/walking distance |
| Steps | Yes | Yes | Both track and count your steps |
| Pace | No | Yes | |
| Speed | No | Yes | |
| Stairs / Floors | No | No | Both don't have elevation feature |
| Exercise Tagging | Yes | Yes | Both have exercise tagging feature |
| Smart Coach | No | No | Both don't have coaching feature |
| Goal Setting | Yes | Yes | Both can help with your goals setting |
| Inactivity Alert | No | No | Both don't have inactivity alerts |
Additional Features |
| GPS | No | Yes | TomTom Runner 3 Cardio + Music has GPS support |
| Compass | No | Yes | TomTom Runner 3 Cardio + Music has a compass |
| Watch / Clock | Yes | Yes | Both have watch |
| Alarm Clock | Yes | Yes | Both have alarm clock |
| Reminders | No | No | Both don't have reminder |
| Stopwatch | No | Yes | TomTom Runner 3 Cardio + Music has a stopwatch |
| Music Playback | No | Yes | Only TomTom Runner 3 Cardio + Music offers phone-free music |
| Reports | Activity, Sleep | Activity, Sleep | |
Smartphone Remote Features |
| Notifications | Yes | Yes | Both show smartphone notifications |
| Caller ID | Yes | Yes | Both show caller ID notification |
| Music Control | No | Yes | TomTom Runner 3 Cardio + Music allows control smartphone music player |
| Call Control | No | No | Both don't have call control |
| Camera Control | Yes | No | Merlin ActiFit Go has a smartphone's remote control function |
| Find Phone | No | No | Both don't have a find phone feature |
Battery |
| Duration | 5 days | 25 days | TomTom Runner 3 Cardio + Music battery life is about 5.0 times longer |
| Battery Type | Rechargeable Battery | Rechargeable Battery | |
Physical Specs |
| Weather Resistance | Yes | Yes | |
| Waterproof | No | No | |
| IP Rating | n/a | 5 ATM | |
| Weight | n/a | 50 grams | |
User Interface |
| Display | OLED Screen | LCD Screen | |
| Display Size | n/a | 22 x 25 mm | |
| Screen Resolution |
n/a
|
144x168 pixels
| |
| Color Display | No | No | |
| Touch Screen | Yes | No | |
Compatibility |
| Android | Yes | Yes | Both compatible with Android devices |
| iOS | Yes | Yes | Both 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 | Yes | Both have Bluetooth data transfer technology |
| 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 | |
