Device Selection Guide
Make an informed decision between LTE smartwatches and compact smartphone setups, recognizing trade-offs in battery life, app compatibility, and audio quality.
Gravity W4-C28 Outdoor Smart Watch: 1.43-inch AMOLED display
For the active individual who needs reliable tech on the go, the Gravity C25 outdoor smartwatch is your all-day companion. While many focus on fitness tracking, this watch excels in durability and seamless connectivity, making it ideal for hiking, running, or daily commutes where rough conditions are the norm.
Its 1.43-inch AMOLED always-on display remains crisp in direct sunlight, so you can check notifications without fumbling. With 1 ATM water resistance, it withstands splashes and rain, while the long battery life means fewer charges during busy weeks. The built-in AI voice assistant lets you control music or calls hands-free, and smart notifications keep you updated without pulling out your phone. Stay connected and protected effortlessly with this versatile outdoor smartwatch.
Features
- Water resistant 1 ATM
- Always-on display
- Bluetooth calling
- 24/7 heart rate monitoring
- Sleep tracking
- Blood oxygen monitoring
- 100+ sports modes
- AI voice assistant
- Smart notifications
- Compatible with Android and iOS
- Temperature resistance -11°F to 140°F
- Dustproof
- Shockproof
- Standby time up to 25 days
- Battery capacity 410 mAh
- 1.43-inch AMOLED display
General specs
- Brand: Gravity
- Model: W4-C28
- Seller: Joom
- ID: 68d7ee6a31d4c701261b6143
- Bluetooth: Bluetooth
- Display Size: 1.43
- Display Type: AMOLED
- Water Resistance: 1 ATM
- First listed by seller: 11/15/25
If you are interested in more details, you can find full information on the seller's page.
View on seller's site
#publicidad
$56.30
Last price update: 11/15/25
Out of stock
Shipping options
Delivery to 
United States
United States
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Gravity W4-C28 Orange 1.43-inch AMOLED display
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| Brand | Gravity | Senbono | CASCHO | QONBINK | Blackview | Senbono |
| Model | W4-C28 | IDW25 | P125 | M91 | R30Max-Black | IDW25 |
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| Price | $56.30 | $29.99 | $18.99 | $29.99 | $26.97 | $29.99 |
| Seller | Joom | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | Mar 18, 2026 | Jul 20, 2025 | Mar 11, 2026 | Mar 11, 2026 | Mar 11, 2026 | Aug 5, 2025 |
| Display Size | 1.43 | 1.83 | 1.85 | 1.85 | 1.91 | 1.83 |
| Display Type | AMOLED | AMOLED | TFT | HD | HD | |
| Water Resistance | 1 ATM | IP68 | IP68 | IP68 | IP68 | |
| GPS | None | None | None | Connected | ||
| Battery Life | 7 | <num_from>, <num_to> | 5, 7 | 6 | ||
| Connectivity | Bluetooth | Bluetooth | Bluetooth | Bluetooth | Bluetooth | |
| Sports Modes | 120 | 115 | 120 | 100 | 120 | |
| OS Compatibility | Android, iOS | Android, iOS | Android, iOS | Android, iOS | Android, iOS | |
| Bluetooth Version | 5.0 | 5.0 | 5.3 | 5.0 | ||
| Storage | <num1>, <num2> | None | Not specified | |||
| Standby Time | <num_from>, <num_to> | 30 | 30 | |||
| Band Material | Silicone | None | Nylon, Silicone | |||
| Health Sensors | Heart Rate | Heart Rate | Heart Rate, SpO2 | Heart Rate, Sleep Monitor | ||
Gravity W4-C28 Orange 1.43-inch AMOLED display
$56.30
When this device makes sense
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