Product Review: Letsfit ID115U Fitness Tracker

The Letsfit ID115U Fitness Tracker accurately records your all-day activities like steps, distance, calories burned, and active exercise minutes.

You can automatically track your sleep duration with comprehensive analysis of your sleep quality data.

You can also set a silent alarm that wakes you up peacefully.

The Letsfit ID115U also receives notifications for calls, calendar entries, SMS and SNS (Facebook, WhatsApp, LinkedIn, Instagram, and Twitter).

The in-built charging system means that there is no need for charging cable or docks.

Retail Packaging.

The Letsfit ID115U comes packaged in a White cardboard box, on the reverse there are two QR codes for downloading the VeryFit Pro App.  The box measures 14.0cm x 8.5cm x 3.0cm and weighs 59G.

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When you open your Letsfit ID115U box you will find: 1x Letsfit Fitness Tracker, and 1x Multi-Lingual User Manual.

Letsfit ID115U.

The Letsfit ID115U has an adjustable watch strap and can be used from a 16cm to a 25cm sized wrist. The fitness tracker weighs 18g.

The Letsfit ID115U has an OLED screen size of 4.0cm x 2.1cm.

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Before you start using your Letsfit ID115U Fitness Tracker you will need to charge your device for 10 minutes. To do this pull apart the watch strap from the middle section, the USB is under the touch key button.

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You will then need to download the app that works with the Letsfit ID115U, the app is called VeryFit Pro and is available from the app store for iOS user and the Google Play Store for Android users.


The Letsfit ID115U has some system requirements of iOS 7.1 and above or Android 4.4 and above.

After 10 minutes you can remove the fitness tracker from the charger.

You will need to ensure you have enabled Bluetooth devices on your smartphone, this will be under your settings section and look for Bluetooth and ensure that it has been enabled.

Search for “ID1115U” and pair the fitness tracker to your device.

Next open the app on your phone and set up an account, you can input details without creating an account, but if you later set up an account it wipes the previous inputted data. So, it’s best to create an account to start off with.

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Everything is controlled from the app, you can customise the screen to 4 different looking modes, see data graphs and control user settings.

To scroll through the different options on the tracker press the touch key button on the front near to the bottom.  To go into further menu’s press and hold on each of the main menu’s.

Letsfit ID115U Menu Options.

General Mode – This mode allows you to see the time, see your daily steps walked, calories burned, and any alarm’s that you have set.

Camera Mode – This mode allows you take photographs using your Letsfit ID115U tracker directly onto your smartphone.

Sport Mode – On this mode you can set things like stopwatch, distance and calories burned during your chosen activity.

Notification Mode – This mode shows you incoming calls, SMS and SNS notifications.

Using the tracker.

The Letsfit ID115U is a basic fitness tracker.  It’s simple to use and set up and doesn’t require a great deal of technological expertise.  All the user settings can be controlled using the VeryFit Pro App.

The battery takes about 1 hour to fully charge and will last around 7 days.

The Letsfit ID115U although is a budget fitness tracker it does come with some nifty features including:

Sleep Monitor – You can keep track and monitor your sleeping patterns, the data once synchronized will be available on the VeryFit Pro App.

Splash Proof – The Letsfit ID115U is splash proof and rated to IP67 standards.  It’s ideal for rain but not for showering or swimming.

Find Phone – Lost your phone?  Then use the Letsfit ID115U to help you locate it.

Wrist Sense – To conserve battery power the Letsfit ID115U goes into sleep mode when not in use, and with a wrist movement of 90 degrees the OLED display will light up again.

Technical Specifications.

  • Brand – Letsfit
  • Model – Fitness Tracker
  • Model Code – ID115U
  • ASIN – B076HKV1FS
  • Connection Type – Bluetooth 4.0
  • Operating Distance – 10M
  • Battery Type –  45mAh Polymer Rechargeable Li Battery
  • Working Voltage – 3.6 ~ 4.2 V
  • Charge Time – 1-2 Hours
  • Usage Time – 7 Days
  • Microphone – No
  • Memory – 32KB RAM + 256KB ROM
  • CPU – Nordic
  • Sensor – KIONIX
  • HR Sensor – No
  • Working Temperature – Minus 10°C ~ 45°C
  • Waterproof Rating – IP67
  • Compliance – CE, RoHS, FCC


If you’re looking for a basic budget fitness band then the Letsfit ID115U is for you.  It’s simple to use and set up and is perfect for someone who just wants to count their daily steps and sleep patterns.  If you want other features like heart rate monitoring then Letsfit do another model, the model is the ID115Plus HR it not only does everything the ID115U does but also monitors your heart rate also.  I like the charging system, all together in one place.

More colours are available, you can choose Black, Blue, Green, Pink, or Purple.

If you want the Letsfit ID115U for yourself, it is available only on Amazon and comes with a full 12 Month Warranty.  The RRP for this tracker is £30.00.

Thank you for reading this, feel free to comment down below, your input really matters to me.  I can also be contacted here.  Why not check out my other product reviews here.



29 thoughts on “Product Review: Letsfit ID115U Fitness Tracker”

  1. I can’t seem to get the sleep mode set up… so I can’t monitor sleep… not sure if I’m doing something wrong? .

    1. Hi Patricia,

      Thank you for your comment. Have you created an account on the VeryFit Pro App? Also have you tried to refresh the app when you open it up? I have found sometimes the data has not been synchronized across automatically and needs a manual refresh in the app, to do this press and hold and in a scrolling down motion the page will start to synchronize, you should see the sleep data appear if successful. Hope this helps you, if not feel free to come back to me and i will see what i can do to help.


  2. Bought this as it said “waterproof” as I swim a lot. Disappointed that now it’s arrived, it’s only waterproofed enough to wash your face or to wear in the rain.

    1. Hi Marie,

      Yes, you’re right, they do list it as Waterproof on Amazon, I wrote my review and listed it as Splash-proof as the IP67 rating only allows you to immerse the product in water at around 1M for only 30 Minutes.
      Have you tried to contact Letsfit? they might be able to help and even accept a return.
      Hope this helps.

  3. Hi,
    Does it automatically record your steps and distance or do you actually have to manually put it on that setting?
    I don’t want to change settings for basic steps.

    1. Hi Sonia,

      The Letsfit ID115U automatically collects data for steps, calories burned, and distance travelled. This data is transferred to the VeryFitPro App for you to see.

      Hope this helps


    1. Hi Helen,

      Thank you for your comment. The time should be updated automatically as the fitness band is synchronised up with your smartphone.

      1. Hi darren

        I expected this to happen but it hasn’t. the phone time is correct and the tracker has synched with the app to download steps but the time has not changed.

        1. Hi Helen,

          Can I ask what device are you using? Have you tried the following method Open VeryFitPro App > User Icon (On Bottom Bar) > Synchronize Now.

          You can always reboot the device too; your data should be saved onto the App and the device will reset itself. To do this follow this method Open VeryFitPro App > Device Icon (On Bottom Bar) > More > Reboot the Device > Confirm


  4. The tracker is sayingvthat today I have done 25,345 steps and although I have done a 3mile walk I definitely haven’t done 25,000+ steps. Why is it tracking way more than Iv done?

    1. Hi Lucy,

      Could you’ve have been swinging your arm more that day? The tracker works of motion from the arm to detect a footstep so sometime depending on the activity of that day the step count can rise.

  5. My calorie tracker says I burn about 197kcal daily and I’m not sure if that means just 197 calories daily or 197000 calories daily but either way it seems really off? Not sure what to do about it? Any ideas?

      1. Hey Darren,
        Thanks for the reply, It’s definitely still way off. Unless “exercise movements” means flailing your arms chaotically. I run and have a daily 1 hr routine workout but I only burn 197 calories? Not likely.

  6. How often do you need to sync the device to your smartphone? My daughter has been wearing the device for a week, but when I synced it today, it only gave me the information for today. Do you need to sync it daily?


  7. I got this watch yesterday. It came with a purple band. I got the hang of this watch except for one thing the heart rate it won’t work for me and I don’t know why.

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