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Round 1.83-inch watch · SpO2 · stress · IP67

ICOMTOFIT K53 Smart Watch

A round-faced everyday watch built for walking, yoga and dance days: 100+ light exercise modes, 24/7 heart rate, blood oxygen and stress, sleep stages, cycle predictions and wrist calls.

  • Screen1.83-inch round HD touchscreen
  • HealthHeart rate, SpO2, stress, sleep, cycle tracking
  • Workouts100+ modes, light exercise focus
  • WaterIP67
  • Battery240mAh, 5 to 7 days
  • ColoursPink or black
Great if you
  • You want a round face that looks like a classic watch
  • Your routine is walking, yoga, dancing or easy jogging
  • You want menstrual cycle tracking with predictions
  • You like taking quick calls on the wrist
Skip it if you
  • You swim: IP67 covers hand washing, sweat and light rain
  • You want a named, well-known companion app up front
  • You prefer a big square screen for reading messages
Strap it on
Colours & bundles

Pick pink or black for the K53

Wear the K53's round 1.83-inch face from desk to dance class

Most budget calling watches are square slabs. The ICOMTOFIT K53 goes the other way with a round 1.83-inch touchscreen, so it reads as a proper watch at work and still counts every step in the evening class.

A round face changes how often you wear it. People take square fitness watches off for dinner or the office; a round one tends to stay on. And a watch that stays on all day and night is the one that builds a real step and sleep history.

The HD screen has adjustable brightness, so it stays readable outdoors and dims for evenings. Hundreds of watch faces are available, from analogue hands that suit a blouse or shirt cuff to data-heavy faces that show steps and heart rate at once.

Two colours cover most wardrobes:

  • Pink: a soft finish that pairs with gym wear and casual outfits.
  • Black: the quieter option for office days and darker straps.
Coach's tip: choose a face that shows your step count next to the time. Every glance at the clock becomes a small reminder of the day's goal.

The K53 leans towards light, regular movement rather than hard training. Its 100+ modes cover walking, yoga, dancing, jogging and a long list of gentle activities, and it logs steps, walking distance, calories and active minutes across the day. It suits anyone starting a habit, returning after a break, or keeping an easy daily routine going.

Round faces do crop text at the edges. Long messages wrap onto more lines than on a square screen, so plan to read the name and first line on the wrist and open the full message on the phone.

Spec sheet

Every number on the box

SpecValue
ModelICOMTOFIT K53
Display1.83-inch round HD LCD touchscreen, adjustable brightness
ShapeRound
Sport modes100+, including walking, yoga, dancing and jogging
Activity trackingSteps, walking distance, calories, active minutes
Heart rate24/7 automatic
Blood oxygenSpO2 tracking
StressStress level tracking
SleepDeep and light sleep stages
Women's healthMenstrual cycle tracking and prediction
CallsAnswer and make calls after pairing
NotificationsCalls, SMS and social apps, with vibration
Daily toolsSedentary reminder, alarm clock, hundreds of watch faces
Water resistanceIP67 (hand washing, sweat, light rain)
Battery240mAh lithium-ion
ChargingMagnetic, about 2 hours
Battery life5 to 7 days of normal use
Storage128MB
GPSUses the phone's GPS
Phone supportAndroid 4.4+ and iPhone

Track stress, SpO2 and cycle predictions on the K53

The K53 runs automatic 24/7 heart-rate tracking and adds blood oxygen and stress readings. At night it analyses deep and light sleep, so the morning starts with a clear picture of how the night went.

ICOMTOFIT built it with women's health in mind. The watch tracks the menstrual cycle and predicts the next one, keeping the dates on the wrist instead of in a separate app. The maker notes that the K53 is a daily reference, not a medical device, and every number on it deserves to be read that way.

A week of habits that uses all of it:

  1. Mornings: check the sleep split and the resting heart rate before coffee.
  2. Midday: let the sedentary reminder push a five-minute walk after long meetings.
  3. Afternoons: glance at the stress reading; a high figure is a cue for a breathing break or a short stroll.
  4. Evenings: log a yoga, dance or walking session in its own mode.
  5. Weekly: compare cycle phase with sleep and energy to plan harder and easier days.

What the readings are good for

Trends matter more than single numbers. A resting heart rate that rises for several mornings, or a stress score that climbs every Tuesday, tells you something about routine and recovery. One odd SpO2 reading after a sweaty session usually means the sensor lost contact.

  • Position the case just above the knobbly wrist bone.
  • Keep the strap snug at night.
  • Stay still for spot readings.

The guide to budget watch accuracy explains which readings to trust and where they drift.

In the line-up

Where it stands in the line-up

FitPro smart watch models by type, September 2026. Highlighted: ICOMTOFIT K53 Smart Watch.

Charge and pair the K53 for a 5-to-7-day rhythm

The K53 charges on a magnetic cable in about two hours and runs 5 to 7 days of normal use from its 240mAh battery. That fits a once-a-week charging habit, which keeps sleep tracking unbroken.

  1. Snap the magnetic charger onto the back and charge until full.
  2. Install the companion app given in the K53's instructions on your Android phone or iPhone.
  3. Bind the watch through the app and approve the Bluetooth pairing prompt.
  4. Allow notifications for calls, SMS and the social apps you want on the wrist.
  5. Set height, weight and a step goal, then switch on 24/7 heart rate and cycle tracking.

After pairing, the K53 answers and makes calls from the wrist and pushes alerts with a gentle vibration. Distance for outdoor walks comes via the phone's GPS, so carry the phone when you want a route recorded.

Battery habit: pick one evening a week, say Sunday, and charge while you cook dinner. The K53 is back on the wrist before bed and never misses a night of sleep data.

Keeping the connection steady

Most dropouts come from the phone, not the watch. Android battery savers close background apps, and iPhones need notification access turned on per app. The pairing and reconnection walkthrough covers both.

IP67 protection handles hand washing, sweat and light rain. Leave the K53 on the bathroom shelf for pool sessions, hot showers and saunas, and dry the charging contacts after a sweaty session. If the watch ever stops charging, start with the steps in the charger guide.

Swap in

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Pick pink or black, then weigh the K53 against round rivals

The two K53 versions share the same watch; only the colour changes. Pink suits bright gym kit and casual days, black blends in at work. Beyond colour, you are really choosing between the K53 and other round watches.

WatchRound screenWaterStand-out extra
ICOMTOFIT K531.83-inch LCDIP67Stress, SpO2, cycle predictions
aeac 1.85-inch1.85-inch, 60HzIP685-year warranty
Fitpolo Round AMOLED1.32-inch AMOLEDNot listedAlways-on display
IDW26 Alexa1.83-inchIP68Alexa built in, VeryFit app

The square aeac 1.85-inch watch trades up to IP68 and a long warranty. The Fitpolo Round AMOLED has a smaller, richer screen. For a square face with a sharper display, the PJYUBVOR 1.9-inch is worth a look.

Why start with the K53 rather than a flashier model? Beginners tend to stick with a watch that feels easy. A plain round face, gentle modes and a charge once a week keep friction low, and low friction is what turns a new gadget into a daily habit. It also covers the health basics that motivate people early: a visible step count, a sleep score each morning and a heart-rate trend that improves as fitness builds.

The K53 makes sense when:

  • you want a round, watch-like look at an entry price
  • light daily movement is the goal, not marathon training
  • cycle tracking and stress readings matter to you

Before you order, check:

  • IP67 means no swimming.
  • A 1.83-inch round case is wide on a small wrist.
  • ICOMTOFIT does not name the companion app up front, so check the instructions before installing.
  • Spare straps and chargers are covered in the bands guide.

Wear the K53 day and night for a month and the history in the app tells a clear story about steps, sleep and stress.

Warm-up questions

Before you strap it on

Can the ICOMTOFIT K53 take calls?

Yes. After pairing with your phone, it answers and makes calls from the wrist and pushes SMS and social app alerts with a vibration.

Is the K53 waterproof for swimming?

No. It is rated IP67 for hand washing, sweat and light rain. Pools, hot showers and saunas are off-limits.

How do the pink and black K53 differ?

Only the colour. Both are the same 1.83-inch round watch with the same sensors, battery and features.

How long does the K53 battery last?

Its 240mAh battery gives 5 to 7 days of normal use after about two hours on the magnetic charger.

Does the K53 track periods?

Yes. It tracks the menstrual cycle and predicts the next one, alongside heart rate, SpO2, stress and sleep.