A big AMOLED calling watch with 140+ sport modes, continuous heart rate and blood oxygen, deep, light and REM sleep stages, and a detailed women's health mode that keeps its data on the watch.
The FOSMET ET587 carries a 1.97-inch AMOLED full touch display, one of the largest AMOLED faces on a budget calling watch. Colours are vivid, contrast is sharp, and heart rate or pace stays readable in bright daylight.
AMOLED pixels light themselves, so a dark background uses less power and looks deeper than on an LCD. For training, that means a clean dashboard: big numbers on black, visible at a glance mid-run or between sets.
More than 140 sport modes sit behind that screen. Running, cycling, yoga and hiking are there, along with a long list of gym, court and outdoor activities. Each session records steps, calories, distance and duration, so a varied week shows up as distinct efforts.
A balanced week using the ET587's modes:
The responsive touch layer makes swipes between stats smooth, and notifications and faces look crisp on the big panel. The case is large to match, so try the size against your wrist if you usually wear a slim watch.
The ET587 comes in black, with a gold 1.97-inch finish offered alongside it.
| Spec | Value |
|---|---|
| Model | FOSMET ET587 |
| Display | 1.97-inch AMOLED full touchscreen |
| Calling | Bluetooth 5.3 low-energy, make and receive calls |
| Input | Microphone and touchscreen, voice assistant |
| Notifications | Facebook, WhatsApp, Twitter, Instagram and more |
| Sport modes | 140+ |
| Activity tracking | Steps, calories, distance, workout duration |
| Heart rate | Continuous, day and night |
| Blood oxygen | Continuous SpO2 monitoring |
| Sleep | Deep, light and REM stages |
| Women's health | Period log, cycle predictions, reminders, fertile-window estimates, stored on the watch |
| Water resistance | IP68 (rated 1.5m) |
| GPS | Connected GPS through the phone |
| Battery | Lithium polymer |
| Companion app | G Band |
| Phone support | iPhone and Android |
| Colour | Black |
| Warranty | 2 years |
Calls on the ET587 run over Bluetooth 5.3 low-energy, a recent version of the standard built for a steady link at low power. Make and receive calls from the wrist through the built-in microphone and speaker, while the phone rides along in a bag.
Message alerts arrive from Facebook, WhatsApp, Twitter, Instagram and more, so a quick glance decides whether something needs attention now or after the cool-down. A voice assistant is also on board for quick spoken commands.
The maker's materials point to the G Band app for setup. Pair it like this:
The call audio link is the step most often missed. If the watch shows messages but calls only ring on the phone, check the phone's Bluetooth list for a second ET587 entry. The phone connection guide covers it for both platforms, and the companion app guide compares the common watch apps.
For quick check-ins during a walk or between sets, a wrist call keeps the session flowing instead of breaking it.
Recovery is half of any training plan, and the ET587 gives it real attention. It tracks heart rate and blood oxygen continuously, day and night, and splits sleep into deep, light and REM stages.
REM is the stage many budget watches skip, so its presence adds depth to the morning review. Look at how each stage shifts after a hard training day, a late meal or an early night, and adjust the next day's effort to match.
Run this morning check-in:
The women's health mode goes further than a basic period log. Record start dates, and the ET587 predicts the next cycle, sends a gentle reminder before it arrives and shows fertile-window estimates at a glance. FOSMET states that this data stays on the device.
Many people use cycle phases to plan training. Harder sessions often feel better in some phases and lighter work in others, and having the prediction on the wrist makes that easy to plan around.
All readings here are wellness estimates from a wrist sensor, not medical measurements. Treat trends as useful and single numbers with caution. The sensor accuracy notes go into detail on sleep, heart rate and SpO2.
IP68 protection, rated to 1.5m, covers rain, sweat and hand washing, so the watch can stay on through the day. Dry it before bed and before charging.
AMOLED calling watches are a growing group at budget level. The ET587 leads on screen size and sport-mode count, while rivals win on weight, battery information or simplicity.
| Watch | Screen | Sport modes | Stand-out point |
|---|---|---|---|
| FOSMET ET587 | 1.97-inch AMOLED | 140+ | REM sleep, fertile-window estimates |
| MFVLP A7 | 1.85-inch AMOLED, curved | 120 | 19g, AI faces |
| Fitpolo 1.85-inch | 1.85-inch AMOLED | 120+ | Up to 10 days |
| Jacoosa TG38 | 1.83-inch IPS | 140 | 350mAh, 5 to 7 days |
The MFVLP A7 is lighter and adds auto-detected workouts. The Fitpolo 1.85-inch AMOLED states up to 10 days per charge. The Jacoosa TG38 matches the 140 modes on an IPS screen.
What the ET587 does best:
What to weigh before choosing:
A 1.97-inch case sits best on medium and larger wrists. Wear it one finger above your wrist bone so the optical sensor keeps steady contact, and loosen it one notch at night for comfort during sleep tracking. FOSMET does not publish the strap width or the charger pin spacing, so measure both before ordering spares, using the band and charger sizing guide.
For someone training across several sports who wants recovery data as rich as the workout data, the ET587 covers both on a screen that is a pleasure to glance at. Plan a regular charge day until you learn how long your own use lasts.
Yes. It uses a 1.97-inch AMOLED full touch display.
Yes. It makes and receives calls over Bluetooth 5.3 through a built-in microphone and speaker, with the phone nearby.
Yes. It splits the night into deep, light and REM stages, and monitors heart rate and SpO2 continuously.
It is rated IP68 to 1.5m for rain, sweat and hand washing. Remove it for swims and hot water.
FOSMET does not publish a figure. Plan a weekly charge until you learn how long your own use lasts.