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Slim band · 0.96-inch · USB-plug charging

S5 Slim Fitness Tracker

A featherweight 0.96-inch band that counts steps, scores sleep and checks heart rate and blood oxygen, then charges by plugging straight into a USB port.

  • Screen0.96-inch touchscreen
  • AppRunmefit
  • HealthHeart rate, SpO2, blood pressure, sleep
  • WaterIP68
  • ChargingBuilt-in USB plug, about 2 hours
  • Battery5-7 days of use
Great if you
  • You want the lightest, simplest band for a first step goal
  • You hate hunting for a proprietary charging cable
  • You want sleep stages and heart rate logged in an app
Skip it if you
  • You want to take calls on the wrist
  • Small text is hard for you to read
  • You want dozens of sports modes on the band itself
Strap it on
Colours & bundles

Three makers, one S5 band

Start a first step goal on the featherweight S5 band

The S5 is the classic slim fitness band: a 0.96-inch touchscreen in a narrow plastic pod on a soft strap. It counts steps, distance and calories all day, checks heart rate and blood oxygen, and records sleep. There is no speaker and no microphone, which keeps it light enough to forget you are wearing it.

Three makers put their name on the same S5 design: ENGERWALL, threesheep and BrilliantHouse. The shape, screen size and USB-plug charging are shared. The small differences are listed with the versions.

What the S5 brings to a first fitness habit:

  • A tiny, comfortable pod. The ENGERWALL strap fits wrists from 4.7 to 8.2 inches, so it suits slim wrists, teenagers and older walkers alike.
  • The health basics. Heart rate, blood oxygen and blood pressure readings, plus sleep split into light, deep and REM phases.
  • No charging cable to lose. One end of the strap hides a USB plug that goes straight into a laptop or phone charger.
  • IP68 sealing. Hand washing, rain and sweaty sessions are fine.

The screen is small by design. It shows the time, steps and the latest heart rate reading in big digits, while the deeper charts live in the app. That split suits people who want a nudge on the wrist and the detail later on the phone.

Read the numbers wisely: blood pressure and blood oxygen figures from a wrist band are wellness trends, not medical readings. Use them to spot a pattern over weeks, and see a doctor about any single worrying number.

On the ENGERWALL version the blood pressure feature has to be enabled inside the app before it appears on the band.

Spec sheet

Every number on the box

SpecValue
Display0.96-inch touchscreen (LCD or OLED by version)
Health sensorsHeart rate, blood oxygen, blood pressure; body temperature on the ENGERWALL version
Sleep trackingLight, deep and REM sleep, wake time
Sports modes16 in the app, 4 stored on the band (17 on the BrilliantHouse version)
Companion appRunmefit (ENGERWALL and threesheep versions)
Water resistanceIP68
Battery105mAh lithium polymer
Battery life5-7 days of use, up to 30 days standby
ChargingBuilt-in USB plug, about 2 hours
NotificationsCalls, SMS, Facebook, WhatsApp, Instagram, Twitter
Phone compatibilityAndroid 5.0+ and iOS 9.0+; not tablets or PCs
GPSConnected, through the phone
Wrist fit4.7-8.2 inches
Band0.8-inch-wide TPU
CaseABS plastic
Daily toolsVibrating alarms, stopwatch, remote camera, sedentary and water reminders
Warranty1 year (ENGERWALL)

Plug the S5 into a USB port and skip the cable hunt

Charging is where the S5 differs most from other bands. There is no magnetic clip and no spare cable. The strap slides off one side of the pod, and the exposed end is a USB plug that fits any computer port or phone charger.

  1. Hold the pod and ease the strap off the end marked with the metal contacts. Pull at a gentle angle, around 45 degrees, rather than straight out.
  2. Push the metal end into a USB-A port or a USB wall adapter.
  3. Look for the charging icon on screen. If none appears, flip the plug over and reinsert it.
  4. Leave it for about 2 hours for a full charge.
  5. Slide the strap back on until it clicks flush with the pod.

Only one end of the pod carries the metal contacts. Both straps come off, so check which side you removed before assuming the band is faulty.

A full charge gives 5 to 7 days of normal use and up to 30 days on standby. The ENGERWALL version quotes 5 days as its typical figure, so plan on charging twice a week if heart rate runs all day.

Keep the plug clean

  • Dry the metal contacts after a sweaty workout or a swim; moisture on the plug is the main reason a charge fails to start.
  • Do not bend the strap sharply at the plug end, where repeated levering can crack the band.
  • Use a laptop port or a basic 5V adapter; a USB-C phone charger needs a USB-A adapter first.

More charger help sits in the charging and battery guide.

In the line-up

Where it stands in the line-up

FitPro smart watch models by type, September 2026. Highlighted: S5 Slim Fitness Tracker.

Sync steps, sleep and heart rate to Runmefit each morning

The ENGERWALL and threesheep S5 bands pair with the free Runmefit app on Android 5.0 or later and iOS 9.0 or later. Tablets and computers are not supported. After the Bluetooth link is made, the clock sets itself to match the phone.

  1. Charge the band fully, then press and hold its button to switch it on.
  2. Install Runmefit, allow Bluetooth and location access, then pair the S5 there.
  3. Enter your height and weight so distance and calorie figures are realistic.
  4. Switch on message alerts for the handful of apps that matter to you.
  5. Set up to five vibrating alarms, plus water and sedentary reminders.

Runmefit holds 16 sports modes. The band itself stores 4 at a time, so choose the four you do most, perhaps walking, running, cycling and a gym session, and swap them in the app when the season changes.

Sleep, heart rate and blood oxygen history are only viewable in the app, shown by day, week and month. Opening the app once each morning keeps the sync short and the band's memory clear.

  • Notifications cover calls, SMS and apps such as Facebook, WhatsApp, Instagram and Twitter; the band vibrates and shows the text.
  • A remote camera button fires the phone's shutter for group photos.
  • Routes are recorded through the phone's GPS when it comes along.
  • Custom watch faces can use your own photo.

If the band keeps dropping its link, the connection guide covers battery-saver settings that close the app in the background.

A quick weekly routine keeps the data clean: sync on Sunday evening, glance at the week's step average and sleep chart, then nudge next week's goal up by a few hundred steps if you hit it five days out of seven.

Swap in

Other watches for the same goal

Bigger screen, longer battery1 USMECBL 1.47-inch Fitness Tracker
USMECBL 1.47-inch Fitness Tracker
The USMECBL band has a 1.47-inch OLED screen and runs 10-14 days in regular use.
  • 1.47" square colour touchscreen
  • Heart rate · SpO2 · sleep
  • Up to 14 days per charge
Strap it on
Swim-proof band2 Zeacool 5ATM Fitness Tracker
Zeacool 5ATM Fitness Tracker
The Zeacool tracker is rated 5ATM and adds a 1.1-inch AMOLED screen and 25 sports modes.
  • 1.1" AMOLED touchscreen
  • Heart rate · SpO2 · sleep
  • Up to 10 days per charge
Strap it on
Room for more sports3 MorePro Air6 Fitness Tracker
MorePro Air6 Fitness Tracker
The MorePro Air6 has a 1.52-inch screen, 120+ sports modes and cycle tracking.
  • 1.52" square colour touchscreen
  • Heart rate · SpO2 · sleep
  • IP68 water resistance
Strap it on

Pick your S5 version or step up to a bigger screen

The three S5 versions share one body, so choose on the small extras. ENGERWALL adds a body temperature sensor and Runmefit support with sleep stages down to REM. The threesheep version also runs on Runmefit with an LCD screen, while BrilliantHouse uses an OLED panel and lists 17 sports modes and a call-reject button.

BandScreenWaterCharging
S50.96-inchIP68Built-in USB plug
USMECBL 1.47-inch1.47-inch OLEDIP68Not stated
Zeacool 5ATM1.1-inch AMOLED5ATMMagnetic
MorePro Air61.52-inchIP68Cable, about 2 hours

The S5 is the smallest screen in that group. Readers who find tiny text a strain will enjoy the USMECBL 1.47-inch or the MorePro Air6 more, both with room for bigger digits. Swimmers should look at the Zeacool, whose 5ATM rating is the swim-proof one.

Before choosing the S5, check these points:

  • No calls: it shows who is calling but cannot answer.
  • Few modes on the band: four at a time, swapped in the app.
  • USB-A only: the plug needs a classic rectangular port or adapter.
  • Small digits: fine for a glance, harder for long messages.

The S5 also makes a sensible second band. Many people keep a calling watch for the working day and slip the S5 on for sleep, since the slim pod sits flat under a duvet and a week of nights costs only one short charge. Its sleep split into light, deep and REM phases gives the bedtime habit its own scoreboard.

For a first step streak with no cable to lose, the S5 remains a simple, likeable place to begin.

Warm-up questions

Before you strap it on

How do you charge the S5 fitness tracker?

Slide the strap off the end with the metal contacts and plug that end straight into a USB port or a USB wall adapter; a full charge takes about 2 hours.

Which app does the S5 band use?

The ENGERWALL and threesheep versions pair with the free Runmefit app on Android 5.0+ and iOS 9.0+.

Can I swim with the S5?

Its IP68 seal covers the sink, rain and sweat. Keep it out of hot baths and saunas, and avoid long soaks.

Why can I only pick four sports on the band?

The band stores 4 of the 16 sports modes at once; swap which four appear in the Runmefit app.

Does the S5 take phone calls?

No. It vibrates and shows who is calling, but has no speaker or microphone for talking.