Oraimo Watch ER OSW-42 vs Samsung Galaxy Fit 4
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Quick comparison
At a glance
Key specifications and important differences. Full details follow below.
| Feature |  Oraimo Watch ER OSW-42 |  Samsung Galaxy Fit 4 |
|---|---|---|
| Price | KSh 7,000.00 | KSh 7,500.00 |
| Display | 1.43-inch AMOLED touchscreen | 1.6-inch AMOLED, 16 million colors |
| Battery capacity | 300 mAh, 4.35 V lithium-polymer battery | 208 mAh typical |
| Water resistance | IP68; suitable for hand washing and cold showers, not diving or scuba diving | 5 ATM rated |
| Storage | — | 256 MB |
| Operating system | — | FreeRTOS |
| Health & wellness features | Heart rate, blood oxygen and activity tracking; wellness readings are not intended for medical diagnosis | Heart rate, blood oxygen, stress and menstrual-cycle tracking; body composition and ECG are not supported |
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Full specifications
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Identity & design
| Specification | Oraimo Watch ER OSW-42 | Samsung Galaxy Fit 4 |
|---|---|---|
| Brand | Oraimo | Samsung |
| Model | Watch ER (OSW-42) | Samsung Galaxy Fit 4 |
| Announced | — | February 2027 |
| Dimensions | 53.6 × 46 × 12.3 mm without strap | 42.9 × 28.8 × 9.9 mm |
| Weight | 49.8 g with strap | 18.5 g body only (band excluded) |
| Build materials | Zinc-alloy, ABS and polycarbonate case with silicone strap | Aluminum body with display cover glass |
| Wrist size | — | Band fit varies by supplied strap configuration |
| Strap / band | Removable silicone strap | Quick-release sport band; color varies by configuration |
| Controls / buttons | Touchscreen and physical buttons | Home button and touchscreen |
Display
| Specification | Oraimo Watch ER OSW-42 | Samsung Galaxy Fit 4 |
|---|---|---|
| Display | 1.43-inch AMOLED touchscreen | 1.6-inch AMOLED, 16 million colors |
| Screen resolution | 466 × 466 pixels | 256 × 402 pixels |
| Display features | Up to 600 nits peak brightness | Always-on display supported; reduces battery life |
Performance & software
| Specification | Oraimo Watch ER OSW-42 | Samsung Galaxy Fit 4 |
|---|---|---|
| Storage | — | 256 MB |
| Operating system | — | FreeRTOS |
Connectivity
| Specification | Oraimo Watch ER OSW-42 | Samsung Galaxy Fit 4 |
|---|---|---|
| Bluetooth | Bluetooth 5.2 | Bluetooth 5.3 |
Audio & communication
| Specification | Oraimo Watch ER OSW-42 | Samsung Galaxy Fit 4 |
|---|---|---|
| Speaker | Built-in speaker | — |
| Microphone | Built-in microphone | — |
| Calling | Bluetooth calling when paired | — |
Sensors, health & fitness
| Specification | Oraimo Watch ER OSW-42 | Samsung Galaxy Fit 4 |
|---|---|---|
| Sensors | Optical heart-rate and blood-oxygen sensors plus step counter | Accelerometer, barometer, gyroscope, optical heart-rate sensor, and ambient-light sensor |
| Health & wellness features | Heart rate, blood oxygen and activity tracking; wellness readings are not intended for medical diagnosis | Heart rate, blood oxygen, stress and menstrual-cycle tracking; body composition and ECG are not supported |
| Sleep tracking | Sleep tracking; data may be retained on the watch for seven days before sync | Sleep monitoring and coaching when paired with Samsung Health |
| Sports / workout modes | More than 100 sports modes | More than 100 workout types with automatic workout detection |
| Safety & emergency features | — | Fall detection and SOS features when paired with a compatible Galaxy phone |
Battery & durability
| Specification | Oraimo Watch ER OSW-42 | Samsung Galaxy Fit 4 |
|---|---|---|
| Battery capacity | 300 mAh, 4.35 V lithium-polymer battery | 208 mAh typical |
| Battery life | Up to 7 days use | Up to 13 days with always-on display off; up to approximately 3.5 days with always-on display enabled |
| Charging | Magnetic charging cradle | Magnetic USB-C charging cable |
| Water resistance | IP68; suitable for hand washing and cold showers, not diving or scuba diving | 5 ATM rated |
Compatibility
| Specification | Oraimo Watch ER OSW-42 | Samsung Galaxy Fit 4 |
|---|---|---|
| Phone compatibility | Compatible Android and iOS smartphones | Compatible Android smartphones; Samsung account and Galaxy Wearable/Samsung Health apps required; some features require a Galaxy phone |
| Companion app | oraimo Health app | Galaxy Wearable and Samsung Health |
| Colors | Black | Gray, Silver, or Pink Gold |
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