In depth comparison and review of Polar Grit X and OPPO Watch Free. Compare sizes, functions, displays, batteries and other important specifications and features to easily choose the right smartwatch for you. Our goal is to help you uncover differences between the products and find the watch that will best fit your needs.
| GENERAL | Polar Grit X | 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 | Multisport | 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 |
| Body Details | With band: 64 g Case only: 44 g |
Case only: 20.9 g |
| Body Material | Stainless steel | Glass fibre reinforced polycarbonate, PA + GF bottom case |
| Protection | Waterproof | Water-resistant |
| Colours | - | Black |
| Clock Display | Yes | Yes |
| FEATURES | Polar Grit X | OPPO Watch Free |
|---|
| Sensors | Digital compass, barometer, altimeter, heart rate | Ambient light sensor, SpO2 sensor, 6-axis accelerometer, optical heart sensor, blood oxygen sensor, gyroscope |
|---|---|---|
| Tracking Data | Distance, speed, calories burned, activity, heart rate, steps taken, pace, sleep stages, cadence, running power, swimming metrics, running index | 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, VO2 max, inactivity alert, alarm, Serene (breathing exercise), weather information, Nightly Recharge recovery measurement, FitSpark training guide, FuelWise smart fueling assistant, Hill Splitter, Route guidance, Route planning with Komoot, Energy sources | Call handling, find phone function, inactivity alert, alarm, timer, music playback control, weather information, AI smart watch face, sleep disturbance analysis |
| Notifications | SMS, Email, incoming calls | SMS, incoming calls |
| Vibrating Alert | Yes | Yes |
| Feedback Type | Vibration alert, visual interface | Vibration alert, visual interface |
| Navigation (GPS) | GPS/GLONASS/Galileo/QZSS receiver | - |
| CONNECTIVITY | Polar Grit X | OPPO Watch Free |
|---|
| Wireless Interface | Bluetooth | Bluetooth 5.0 BLE |
|---|
| DISPLAY | Polar Grit X | OPPO Watch Free |
|---|
| Type | Colour | AMOLED - colour |
|---|---|---|
| Resolution | 240 x 240 pixels | 456 x 280 pixels |
| Screen Size | 1.2" | 1.64" |
| Pixel Density | - | 326 ppi |
| Colour Depth | - | 24-bit (16.7 million colours) |
| Screen Protection | Corning Gorilla Glass (scratch resistant glass) | 2.5D curved glass |
| Always On Display (AOD) | Yes | - |
| INPUT DEVICE | Polar Grit X | OPPO Watch Free |
|---|
| Type | Touch sensitive screen | Touch sensitive screen |
|---|
| CASE | Polar Grit X | OPPO Watch Free |
|---|
| Crystal Type | Laminated Corning Gorilla Glass | - |
|---|---|---|
| Case Shape | Round | Rectangular |
| Bezel | Stainless steel | - |
| Case Details | White/silver | Black DLC | Silver | - |
| BAND | Polar Grit X | OPPO Watch Free |
|---|
| Band Type | Band | Strap |
|---|---|---|
| Band Size | S | - |
| Band Width | 22 mm | 19 mm |
| Fits Wrist with Circumference | 130-190 mm | 130-205 mm |
| Changeable | Yes | Yes |
| Clasp Type | Buckle | Buckle |
| Band Material | Silicone | Silicone |
| Band Colour | White | Black | Green | - |
| BATTERY | Polar Grit X | OPPO Watch Free |
|---|
| Technology | Lithium polymer | Lithium Ion |
|---|---|---|
| Capacity | 346 mAh | 235 mAh |
| Battery Life | 7 day(s) | 14 day(s) |
| Battery Life Details | Watch mode - up to 7 days Training mode - up to 40 hour(s) |
Typical usage - up to 14 days |
| Rechargeable Battery | Yes | Yes |
| MISCELLANEOUS | Polar Grit X | OPPO Watch Free |
|---|
| Included Accessories | USB charging cable | Magnetic charging dock |
|---|---|---|
| Compliant Standards | MIL-STD 810G | - |
| Max Depth of Water Resistance | 100 m | 50 m |
| Max Operating Temperature | 50 °C | - |
| Min Operating Temperature | -20 °C | - |
| Manufacturer Model Number | - | OWWE201 |
| Warranty | 2-year warranty | 2-year warranty |
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