TOZO S4 AMOLED Smart Watch
- 1.78 inch AMOLED, 368 x 448
- Up to 7 days use, 30 days standby
- 300 mAh battery, about 2 hours to charge
- Bluetooth calling and message alerts
- 100+ sport modes
- IP68 waterproof
- iOS 11.0+ and Android 9.0+ phones
- 39 g, 22 mm silicone band
Updated 25 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A capable everyday fitness watch with a sharp AMOLED screen, Bluetooth calls and long battery life. GPS is not built in, so runners who want route maps need their phone along.
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ASIN: B07L1GRYN4Model: S4Category: Smartwatches
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Overview
TOZO's AcuFit watch is a square smart watch with an AMOLED screen that tracks workouts, sleep stages, heart rate and blood oxygen while relaying calls and messages from your phone. A Bluetooth link handles calls, and a silicone band closes with a buckle.
A bright AMOLED screen with call answering and a week of battery covers daily wear and the gym in one light watch. Built in GPS is not listed, so outdoor routes rely on the phone.
Who it's for
Everyday wearers who want health tracking and phone alerts with a long gap between charges. Serious outdoor athletes needing GPS and detailed training metrics should look at sport watches.
Pros and cons
- Sharp AMOLED display
- Answer calls on the watch
- Sleep stage tracking
- Long battery between charges
- Built in GPS not listed
- No app store or third party apps
- Swim use not confirmed
Performance notes
Battery life depends on screen time, calls and how often health sensors sample, so heavy calling shortens the week. Workout and stress readings come from an optical sensor on the wrist, which reads most reliably with a snug band.
Specifications
| Brand | TOZO |
|---|---|
| Model | S4 |
| Dimensions & fit | |
| Screen size | 1.78 inches |
| Band width | 22 millimeters |
| Item weight | 39 g |
| Capacity & performance | |
| Battery capacity | 300 mAh |
| Power & efficiency | |
| Battery average life | Up to 7 days, 30 days standby |
| Battery charge time | About 2 hours |
| Construction & materials | |
| Band material type | Silicone |
| Compatibility & installation | |
| Compatible phone models | iOS 11.0+, Android 9.0+ |
| Other details | |
| Display type | AMOLED |
| Waterproof Rating | IP68 |
| Clasp type | Buckle |
| Resolution | 368 x 448 |
| Sport type | 100+ sport modes |
| Health metrics | Heart rate, blood oxygen, stress, sleep stages |
| Communication feature | Bluetooth calls, notifications, text messages |
| Builtin media | S4 watch, charging cable, instruction manual, quick guide |
Frequently asked questions
Does the TOZO S4 have built in GPS?
The listing states No GPS for geotagging. Use your phone to map outdoor routes.
Can I take calls on the TOZO S4?
Yes. It supports Bluetooth calling along with call logs and message notifications.
Will the TOZO S4 work with my iPhone?
It lists iOS 11.0+ and Android 9.0+ devices.
What comes with the TOZO S4 watch?
The watch, a charging cable, an instruction manual and a quick guide.