Basic Info |
| Wear Type | Wristband | Wristband | |
| Price | $12420 | $14999 | Garmin Forerunner 15 is 120% cheaper |
| Ratings | | | |
Activity & Fitness |
| Activity | Yes | Yes | Both track daily activity |
| Calories | Yes | Yes | Both show estimated calories burned |
| Sleep | Yes | No | Garmin Forerunner 15 monitors your sleep pattern |
| Heart Rate / Pulse | No | Yes | Polar RCX3 tracks heart rate |
| External HR Monitor | No | Yes | |
| Distance | Yes | Yes | Both track your running/walking distance |
| Steps | Yes | Yes | Both track how many steps you take |
| Stairs / Floors | No | No | Both don't have elevation feature |
| Exercise Tagging | No | Yes | Only Polar RCX3 provides exercise tagging |
| Smart Coach | No | No | Both don't have coaching feature |
| Goal Setting | No | Yes | Set and keep your own daily or weekly goals with Polar RCX3 |
| Inactivity Alert | n/a | No | Both don't have inactivity alerts |
Additional Features |
| GPS | Yes | Yes | Both have integrated GPS modules |
| Compass | n/a | No | Both don't have a compass |
| Watch / Clock | Yes | Yes | Both have watch |
| Alarm Clock | No | Yes | Polar RCX3 has a alarm clock |
| Reminders | No | No | Both don't have reminder |
| Stopwatch | No | No | Both don't have stopwatch |
| Music Playback | n/a | No | Both don't have music playback |
| Reports | Activity, Sleep | 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 | n/a | No | Both don't have call control |
| Camera Control | n/a | No | Both don't have camera control |
| Find Phone | n/a | No | Both don't have a find phone feature |
Battery |
| Duration | 35 days | 240 days | Polar RCX3 battery life is about 6.9 times longer |
| Battery Type | Rechargeable Battery | Replaceable Cell Battery | |
Physical Specs |
| Weather Resistance | Yes | Yes | |
| Waterproof | Yes | No | |
| IP Rating | n/a | 3 ATM | |
| Weight | 43 grams | n/a | |
User Interface |
| Display | E-ink Screen | Yes | |
| Display Size | n/a | n/a | |
| Screen Resolution |
n/a
|
n/a
| |
| Color Display | n/a | No | |
| Touch Screen | n/a | No | |
Compatibility |
| Android | Yes | No | Garmin Forerunner 15 is compatibles with Android phones and tablets |
| iOS | Yes | No | Garmin Forerunner 15 can connect with iPhones or iPads |
| OS X/Mac | No | Yes | Polar RCX3 compatibles with MacBooks and iMacs |
| Windows Phone | No | No | Both don't compatible with Windows Phone devices |
| Windows | No | Yes | Polar RCX3 allows you to locate your phone |
| Web Portal | Yes | Yes | Both have access to online web portal |
| Social Features | n/a | No | Both don't have social features |
Connectivity |
| Bluetooth | Yes | No | Only Garmin Forerunner 15 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 | |
