ESTG K57 Pro Smart Watch: 1.96-inch display
Available Options
Meet the K57 Pro Smart Watch—your new wrist buddy that doesn’t just look sharp but keeps up with your hustle. Its 1.96-inch display is like having a mini command center, showing off your texts, calls, and how many steps you’ve taken (or skipped) today. And with a 400 mAh battery, it’s the marathon runner of smartwatches, barely needing a pit stop.
Here’s the lowdown on what it packs:
- Bluetooth? Check. Stay hooked to your phone without actually being glued to it.
- Health nuts, rejoice! It’s got a pulse oximeter and heart rate tracker—because knowing is half the battle.
- From couch to 5K? There’s a mode for that. And pretty much any other activity you can think of.
Whether you’re crushing deadlines or trails, this watch is like that one friend who’s always got your back—keeping you in the loop and in tune with your health.
- 400 mAh battery
- Bluetooth connectivity
- Health monitoring
- Sports tracking
- 1.96-inch display
General specs
- Brand: ESTG
- Model: K57 Pro
- Seller: Joom
- Display Size: 1.96 inches
- Battery Capacity: 400 mAh
- Connectivity: Bluetooth
- Health Features: Pulse oximeter, Heart rate tracker
- Sports Features: Activity tracking
- First listed by seller: 5/23/25
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
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
ESTG K57 Pro 1.96-inch display
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| Brand | ESTG | ElectronicsHome | K56Pro | SACOSDING | ESTG | |
| Model | K57 Pro | K56Pro | K56Pro | ET480 | Watch5 Pro | |
| Color |
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| Rating |
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| Price | $42.37 | $61.77 | $72.35 | $39.21 | $78.22 | $36.12 |
| Seller | Joom | Joom | Joom | Banggood | Joom | Joom |
| Update | August 8, 2025 | August 30, 2025 | August 22, 2025 | September 3, 2025 | August 8, 2025 | August 9, 2025 |
| Display Size | 1.96 inches | 1.39 inches | 1.8 inch | |||
| Battery Capacity | 400 mAh | 400 mAh | 300mAh | 900 mAh | ||
| Connectivity | Bluetooth | Bluetooth | Bluetooth | Bluetooth | ||
| Features | Heart rate monitor, Long standby time | Heart rate monitor, Long standby mode | Music Player, Health Monitoring, Fitness Tracker | Bluetooth calling, Health monitoring, Compass | ||
Smart Watch
Vihaan G.
Bengaluru
June 2, 2025
As a sales manager in Bengaluru, I'm always on the move, and this watch has been a helpful companion for keeping track of my daily activities and health metrics. I started using it a couple of weeks ago, and it's integrated well into my routine—getting alerts for calls and messages without having to pull out my phone is a time-saver. The health features are a standout; monitoring my heart rate during stressful days gives me peace of mind, and the oxygen sensor works reliably. However, I'm a bit of a perfectionist, so the minor inaccuracies in step counting and the occasional sluggishness bug me. It's not the most stylish piece, but for this price, it offers good value. Overall, it does what it promises, though there's room for improvement in responsiveness and design. I'd recommend it with some reservations, especially if you're tech-savvy and can overlook small flaws :)
- Pros: The display is very clear and easy to read even in bright light, making it great for checking notifications on the go. Battery life is impressive, lasting days without needing a charge, which is a big plus for my busy schedule. I like that it tracks my heart rate and blood oxygen levels accurately, helping me stay on top of my health goals. For this price, it feels like a solid deal with good connectivity to my phone.
- Cons: The design could be more refined; it feels a bit bulky on my wrist and not as sleek as I'd prefer. Sometimes the step count seems off, which is frustrating for someone who values precision. The interface can be a bit laggy at times, making it less responsive than I'd like. I could be wrong, but the activity tracking modes don't always match up perfectly with my workouts.