Casio GMC-B2100D-1A G-Shock Bluetooth Solar Metal Sports Watch: Solar powered with rechargeable battery
For the active professional who needs a watch that keeps up with a demanding schedule, the Casio G-Shock GMC-B2100D-1A is designed to handle your daily grind and weekend adventures. While many focus on ruggedness, this watch offers seamless connectivity, giving you peace of mind with automatic time updates via Bluetooth so you never miss a beat.
Its solar power means you can rely on it for months without a recharge, and the 200m water resistance lets you swim or shower worry-free. The LED light illuminates the dial clearly in low light, and the metal build feels durable yet comfortable. You get precise timekeeping and easy access to world times, making it a practical tool for travel or daily life.
Features
- Bluetooth connectivity for time sync
- 200 meter water resistance
- Shock resistant stainless steel case
- LED light with afterglow
- World time for 300 cities
- Solar powered with rechargeable battery
General specs
- Brand: Casio
- Model: GMC-B2100D-1A
- Seller: Joom
- ID: 6726570c6be9bf01231c6222
- Connectivity: Bluetooth
- Case Material: Metal
- Bluetooth Version: 5.0
- First listed by seller: 11/15/25
If you are interested in more details, you can find full information on the seller's page.
Shipping options
United States
Comparison with similar products
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|---|---|---|---|---|---|---|
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RUIMEN D1 Black Make and answer calls directly on watch
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SANDA 2145 Calorie tracking
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Xiaomi BHR8784GL Black Two year warranty against factory defects
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Kummel 4895246902838 Light Purple No app or phone required for basic use
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Jugeman P99 Pink Answer and make calls
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| Brand | Casio | RUIMEN | SANDA | Xiaomi | Kummel | Jugeman |
| Model | GMC-B2100D-1A | D1 | 2145 | BHR8784GL | 4895246902838 | P99 |
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| Price | $602.30 | $25.97 | $28.95 | $33.00 | $39.99 | $11.99 |
| Seller | Joom | Amazon | Gshopper | Amazon | Amazon | Amazon |
| Update | November 19, 2025 | November 9, 2025 | November 19, 2025 | November 9, 2025 | November 9, 2025 | November 9, 2025 |
| Connectivity | Bluetooth | Bluetooth | Bluetooth | Bluetooth | ||
| Bluetooth Version | 5.0 | 5.2 | 5.0 | 5.3 | ||
| Battery Life | 7 | 7 | 7 | |||
| Display Size | 1.85 | 1.5 | 1.96 | |||
| Display Type | AMOLED | AMOLED | LCD | TFT | ||
| Sports Modes | 100 | 20 | 20, 100 | 113 | ||
| Health Sensors | Heart Rate, SpO2 | Heart Rate, SpO2 | Heart Rate, SpO2 | Heart Rate, SpO2 | ||
| OS Compatibility | Android, iOS | Android, iOS | Android, iOS | |||
| Water Resistance | IP68 | IP68 | IP68 | IP68 | ||
