Carrefour T-Rex 3 Ultra Smartwatch with GPS and Military Durability: Built-in dual-band GNSS GPS
The rugged smartwatch market just got a serious upgrade with the T-Rex 3 Ultra. This thing is built like a tank, meeting military standards for durability—perfect for outdoor fanatics and athletes who need gear that won't quit. It's waterproof up to 5 ATM, so go ahead, take it swimming or face a downpour; it'll shrug it off like a champ.
Navigation? Nailed it. The dual-band GNSS GPS delivers pinpoint accuracy for hikes, runs, or any off-grid adventure, backed by an integrated compass to keep you from getting lost. But it's not all brawn; this watch tracks heart rate, steps, and multiple sports modes, making it a fitness powerhouse. Whether you're grinding through daily workouts or military drills, it's the reliable sidekick you didn't know you needed.
Features
- Waterproof up to 5 ATM
- Military-grade durability for sports
- Integrated compass for navigation
- Advanced fitness and activity tracking
- Built-in dual-band GNSS GPS
General specs
- Brand: Carrefour
- Model: T-Rex 3 Ultra
- Seller: Joom
- ID: 68a45a852f0ab10122aed521
- Water Resistance: 5 ATM
- GPS Technology: Dual-band GNSS
- Durability Standard: Military-grade
- Compass: Integrated
- Compatibility: Smartphone sync
- First listed by seller: 8/24/25
If you are interested in more details, you can find full information on the seller's page.
Shipping options
United States
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| Brand | Carrefour | KOSPET | Garmin | Garmin | Samsung | WalkerFit |
| Model | T-Rex 3 Ultra | Tank M3 | 010-03020-00 | E11GRINST350AMBB | SM-R845U | M6 Ultra |
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| Price | $96.88 | $159.99 | $499.99 | $519.99 | $54.44 | $43.60 |
| Seller | Joom | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | Nov 14, 2025 | Mar 11, 2026 | Mar 11, 2026 | Mar 11, 2026 | Mar 11, 2026 | Mar 11, 2026 |
| Product Dimensions | 2.13 x 1.69 x 0.55 inches | 1.97 x 1.97 x 0.57 inches | 1.97 x 1.97 x 0.57 inches | 1.82 x 1.77 x 0.44 inches | ||
| Item Weight | 7.05 Ounces | 59 Grams | 59 Grams | 5 ounces | 5.1 ounces | |
| batteries | 1 Lithium Polymer batteries required. | 1 CR5 batteries required. (included) | 1 CR5 batteries required. | 1 Lithium Ion batteries required. | 1 Nonstandard Battery batteries required. (included) | |
| Standing Screen Display Size | 1.96 Inches | 1.3 Inches | 1.3 Inches | 34.5 Millimeters | 1.43 Inches | |
| Memory Storage Capacity | 256 MB | 4 GB | 4 GB | 8 GB | ||
| Country of Origin | China | USA | China | |||
