Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
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For the outdoor enthusiast who pushes limits, the Black Shark GS3 smartwatch is built to keep up. Whether you're trail running, hiking, or strength training, this rugged companion delivers reliable performance in harsh conditions.
You won't worry about drops or splashes. With IP69K and MIL-STD-810H ratings, the GS3 withstands dust, water, and shocks. The 1.43-inch AMOLED screen (466x466 resolution) stays crisp under direct sunlight, and the 600 nits brightness ensures you can read stats at a glance. GPS locks on quickly before you leave the trailhead, so you track your route accurately.
Battery life reaches 380 hours in typical use, lasting through multi-day trips without recharging. The built-in heart rate monitor and SpO2 sensor give you real-time data on your fitness and recovery. You can take calls directly from your wrist, control your smartphone camera, and pay with NFC. It also tracks sleep, stress, and women's health, making it a comprehensive tool for your active lifestyle.
| This item | Recommendations | |||||
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Black Shark GS3 green 1.43-inch AMOLED display
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LIGE EF6-A
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DREMAC DM1-A
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AMAZTIM M3E Built-in GPS with 6 satellite positioning
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AMAZTIM M3 60+ days ultra-long battery life
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LIGE EF5 Black
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| Brand | Black Shark | LIGE | DREMAC | AMAZTIM | AMAZTIM | LIGE |
| Model | GS3 | EF6-A | DM1-A | M3E | M3 | EF5 |
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| Price | €68.00 | €54.42 | €27.21 | €108.85 | €80.25 | €47.16 |
| Seller | Rulez BY | Retailer | Retailer | Retailer | Retailer | Retailer |
| Update | Nov 14, 2026 | Mar 21, 2026 | Mar 23, 2026 | May 18, 2026 | May 14, 2026 | Apr 15, 2026 |
| Display Size | 1.43 inches | 1.43 Inches | 1.43 inches | |||
| Compatibility | Android 4.4+, iOS 8.0+ | Android, iOS | iOS, Android | |||
| Battery Capacity | 530 mAh | 530mAh | 480mAh | 530 mAh | ||
| Item Weight | 8 ounces | 324 Grams | 216 Grams | |||
| Package Dimensions | 6.7 x 4.4 x 1 inches | 4.33 x 3.86 x 2.24 inches | 7.09 x 3.82 x 0.94 inches | |||
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