Side by side comparison and review of Polar Unite and OPPO Watch Free. Compare design, displays, functions, batteries and other key specifications and features to simplify the choice of your perfect smartwatch. Our goal is to make it easier for you to decide on the watch that will best meet your expectations by revealing the main differences between the products.
| GENERAL | Polar Unite | OPPO Watch Free |
|---|
| Product Type | Sport watch | Smart watch |
|---|---|---|
| Supported Host Device OS | iOS, Android | iOS 10 or later, Android 6.0 (Marshmallow) or later |
| Activity/Sport | - | Indoor running, indoor walking, elliptical, 5-min workouts, fat burn running, outdoor walking, outdoor running, indoor rowing, endurance running, interval running, jogging |
| Wearing Style | Watch style | Watch style |
| Width | 43.4 mm | - |
| Height | 43.4 mm | - |
| Depth | 10.4 mm | - |
| Weight | 32 g | - |
| Body Details | - | Case only: 20.9 g |
| Body Material | Fibreglass reinforced polymer | Glass fibre reinforced polycarbonate, PA + GF bottom case |
| Protection | Water-resistant | Water-resistant |
| Colours | - | Black |
| Clock Display | Yes | Yes |
| FEATURES | Polar Unite | OPPO Watch Free |
|---|
| Sensors | Accelerometer, ambient light sensor, optical heart sensor | Ambient light sensor, SpO2 sensor, 6-axis accelerometer, optical heart sensor, blood oxygen sensor, gyroscope |
|---|---|---|
| Tracking Data | Distance, calories burned, activity, sleep activity, heart rate, steps taken | Distance, time, calories burned, activity, sleep activity, heart rate, steps taken, blood oxygen saturation, heart rate variability, snoring |
| Modes | - | 100+ Workout modes |
| Goal Setting | Yes | Yes |
| Features | Fitness test, Bluetooth Smart technology, inactivity alert, GPS via mobile, guided breathing session, Nightly Recharge recovery measurement, FitSpark training guide | Call handling, find phone function, inactivity alert, alarm, timer, music playback control, weather information, AI smart watch face, sleep disturbance analysis |
| Notifications | Calendar, SMS, Email | SMS, incoming calls |
| Vibrating Alert | Yes | Yes |
| Feedback Type | - | Vibration alert, visual interface |
| CONNECTIVITY | Polar Unite | OPPO Watch Free |
|---|
| Wireless Interface | Bluetooth | Bluetooth 5.0 BLE |
|---|---|---|
| Connectors | USB | - |
| DISPLAY | Polar Unite | OPPO Watch Free |
|---|
| Type | IPS - colour | AMOLED - colour |
|---|---|---|
| Resolution | 240 x 204 pixels | 456 x 280 pixels |
| Screen Size | - | 1.64" |
| Pixel Density | - | 326 ppi |
| Colour Depth | - | 24-bit (16.7 million colours) |
| Screen Protection | - | 2.5D curved glass |
| INPUT DEVICE | Polar Unite | OPPO Watch Free |
|---|
| Type | Touch sensitive screen | Touch sensitive screen |
|---|
| CASE | Polar Unite | OPPO Watch Free |
|---|
| Case Shape | Round | Rectangular |
|---|
| BAND | Polar Unite | OPPO Watch Free |
|---|
| Band Type | Band | Strap |
|---|---|---|
| Band Size | S/L | - |
| Band Width | 20 mm | 19 mm |
| Fits Wrist with Circumference | 130-210 mm | 130-205 mm |
| Changeable | Yes | Yes |
| Clasp Type | Snap & slip | Buckle |
| Band Material | Silicone | Silicone |
| Band Colour | Black | Blue | Pink | White | - |
| BATTERY | Polar Unite | OPPO Watch Free |
|---|
| Technology | Lithium polymer | Lithium Ion |
|---|---|---|
| Capacity | 174 mAh | 235 mAh |
| Battery Life | - | 14 day(s) |
| Battery Life Details | Watch mode + HR - up to 4 days Training mode + HR - up to 50 hour(s) |
Typical usage - up to 14 days |
| Rechargeable Battery | Yes | Yes |
| MISCELLANEOUS | Polar Unite | OPPO Watch Free |
|---|
| Included Accessories | Charging/data cable | Magnetic charging dock |
|---|---|---|
| Preloaded Software | Polar Fitness Test, Polar Flow | - |
| Max Depth of Water Resistance | 30 m | 50 m |
| Max Operating Temperature | 50 °C | - |
| Min Operating Temperature | -10 °C | - |
| Manufacturer Model Number | - | OWWE201 |
| Warranty | 2-year warranty | 2-year warranty |
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