--- product_id: 47974199 title: "Xerfira CoBand K4 Fitness Tracker: Bluetooth Heart Rate Fitness Watch/Activity Tracker Bracelet Watch for Men & Women/ Waterproof, Wearable Wristband/ Record Pedometer Distance, Sleep Patterns & Burned Calories & blood pressure tracker" brand: "xerfira" price: "VT32" currency: VUV in_stock: false reviews_count: 2 url: https://www.desertcart.vu/products/47974199-xerfira-coband-k4-fitness-tracker-bluetooth-heart-rate-fitness-watch store_origin: VU region: Vanuatu --- # Xerfira CoBand K4 Fitness Tracker: Bluetooth Heart Rate Fitness Watch/Activity Tracker Bracelet Watch for Men & Women/ Waterproof, Wearable Wristband/ Record Pedometer Distance, Sleep Patterns & Burned Calories & blood pressure tracker **Brand:** xerfira **Price:** VT32 **Availability:** ❌ Out of Stock ## Quick Answers - **What is this?** Xerfira CoBand K4 Fitness Tracker: Bluetooth Heart Rate Fitness Watch/Activity Tracker Bracelet Watch for Men & Women/ Waterproof, Wearable Wristband/ Record Pedometer Distance, Sleep Patterns & Burned Calories & blood pressure tracker by xerfira - **How much does it cost?** VT32 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/47974199-xerfira-coband-k4-fitness-tracker-bluetooth-heart-rate-fitness-watch) ## Best For - xerfira enthusiasts ## Why This Product - Trusted xerfira brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Take Your Workout To Record Levels The SAFE Way!Are you in search of a reliable bracelet wristband to keep track of….…your fitness data when running, hiking or working out in the gym…the burnt calories and your weight loss… your sleep patterns…important calls & SMS you have to deal with?If so, you should definitely read on!Xerfira Bracelet Wristband Will Help You Organize All Your Daily Activities!Measuring your heart rate, our fitness tracker activity watch helps you keep track of your PROGRESS while running or hiking, as well as the CALORIES you burn and the STEPS you take while playing tennis, squash or basketball.Record your training session specifications thanks to this reliable pedometer counter and take full control of your performance!Top Multifunction AccessoryOur bracelet wristband will accurately monitor your SLEEP QUALITY, helping you take steps for a deep, relaxing good night sleep.With a CALL REMINDER and MESSAGE REMINDER, this activity watch reminds you to answer missed incoming CALLS and read new MESSAGES by vibration, keeping your professional and personal contacts in perfect organisation.Find In The Package:1 x Smart Fitness Bracelet in Black1 x FREE Changeable Wristband in Blue1x User’s MANUAL in English & German1 x charging cablePerfect Gifting IdeaOffer this modern, stylish and competitively priced bracelet wristband to your friends, co-workers or family and enjoy their ear-to-ear smile! Show off your taste with the best waterproof activity tracker!And The Best Part?We are making your experience absolutely RISK-FREE, backing our product with reliable Xerfira Full Refund Policy.Click Add To Cart NOW! ## Features - KEEP TRACK OF YOUR PERFORMANCE: Xerfira bracelet wristband watch allows you to check your workout efficiency, by keeping track of your HEART RATE, WALKING DISTANCE, the CALORIES you burn and the STEPS you walk, so that you can adjust your training sessions. It is a top sports bracelet that boosts your training to lead to your desired fitness goals. - EXPLORE ITS VERSATILE NATURE: With a pulse meter, step counter, activity tracker, calorie counter, sleep analysis, distance measurement, movement reminder, caller display, SMS display, alarm clock and mobile phone search this activity tracker bracelet makes a MUST-HAVE for every active man, woman, teen or kid, easily WEARABLE and certified WATERPROOF. - STYLISH & CONVENIENT: The stylish, minimal design and the OLED screen workout monitoring will allow for CLEAR READING of figures without straining your eyes. The SUBTLE VIBRATION will keep you alert, while the elegant SLIM PROFILE will compliment your stylish looks. It is an attractive fitness gadget to ease your mind of tiring daily practicalities! - GET A STUNNING FREE BONUS: We have added to your activity monitor bracelet pack an EXTRA fitness wristband in vibrant blue color, adding TREMENDOUS VALUE to your order! Pick the fitness watch strap in the GENDER-FREE color that suits your mood and make the most of every single moment of your day! - EASILY CONNECTED VIA YOUR SMARTPHONE: Connect your bracelet wristband through Bluetooth 4.0 to your smart phone via IMCOWear (IOS) or IMCO (Android) to enjoy full control over all your activities. It supports IOS 8.0 or higher (iPhone 7/7 plus / iPhone 6 / 6S plus / iPhone 5 / 5S / 5C, etc); Android 4.4 or higher (Samsung, Huawei, HTC, Sony, LG etc). ## Images ![Xerfira CoBand K4 Fitness Tracker: Bluetooth Heart Rate Fitness Watch/Activity Tracker Bracelet Watch for Men & Women/ Waterproof, Wearable Wristband/ Record Pedometer Distance, Sleep Patterns & Burned Calories & blood pressure tracker - Image 1](https://m.media-amazon.com/images/I/71WYtHE6-HL.jpg) ![Xerfira CoBand K4 Fitness Tracker: Bluetooth Heart Rate Fitness Watch/Activity Tracker Bracelet Watch for Men & Women/ Waterproof, Wearable Wristband/ Record Pedometer Distance, Sleep Patterns & Burned Calories & blood pressure tracker - Image 2](https://m.media-amazon.com/images/I/71IAmWIzKIL.jpg) ![Xerfira CoBand K4 Fitness Tracker: Bluetooth Heart Rate Fitness Watch/Activity Tracker Bracelet Watch for Men & Women/ Waterproof, Wearable Wristband/ Record Pedometer Distance, Sleep Patterns & Burned Calories & blood pressure tracker - Image 3](https://m.media-amazon.com/images/I/81SDtu5ZKfL.jpg) ![Xerfira CoBand K4 Fitness Tracker: Bluetooth Heart Rate Fitness Watch/Activity Tracker Bracelet Watch for Men & Women/ Waterproof, Wearable Wristband/ Record Pedometer Distance, Sleep Patterns & Burned Calories & blood pressure tracker - Image 4](https://m.media-amazon.com/images/I/81a3GGzQzAL.jpg) ![Xerfira CoBand K4 Fitness Tracker: Bluetooth Heart Rate Fitness Watch/Activity Tracker Bracelet Watch for Men & Women/ Waterproof, Wearable Wristband/ Record Pedometer Distance, Sleep Patterns & Burned Calories & blood pressure tracker - Image 5](https://m.media-amazon.com/images/I/71jnrien-9L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐ Making Tracks *by A***R on Reviewed in the United Kingdom on 15 January 2018* I have been using this fitness tracker since December and can report it very well maid and very good value, especially as it comes with a spare wrist band. The instructions can be a little unclear but if your used to playing with android apps and devices with a little trial and error you can soon set it up. So there are really 2 stories here, one for the tracker and the other for the app, so the tracker is light comfortable and works well through all its functions and you can basically wear it full time as a watch with all the other tracker benefits, I was particularly surprised at how well the heart rate monitor functions (note the tracker must sit above the wrist joint for this to be accurate). The display is very clear in all but bright daylight which for me is to be expected. Charging is easy and I am getting 2 - 3 days between charges with the heart rate monitor set to take a reading every hour. OK now for the app and this is the reason I have given an overall rating of 4 (for the tracker alone I would give 5) initially the app has clean graphics a clear layout and reasonable amount of functionality but accepting this is a budget tracker with a little extra detail this could be a great budget tracker e.g. vertical scaling missing from the steps bar graph, step goal and sleep quality text to small (very fixable). Also occasionally it looses sync and won't re-pair with the tracker so I have to exit the the app reboot my phone re-launch the app and re-pair with the tracker, the good thing is all the dater is retained, I assume this is some sort of glitch when the tracker goes out of range from the phone which inhibits it reconnecting and syncing automatically and would hope this could be fixed with a firmware update. So over all the pluses easily out weigh the negatives therefore I do recommend this tracker for general daily activity tracking and and look forward to any firmware/software upgrades from IMCO. ### ⭐⭐⭐ Good as a step counter *by S***H on Reviewed in the United Kingdom on 22 May 2018* 1st band snapped within 2 months. Replacement bands not available in the UK & very expensive to ship from US. Good as a step counter, make sure it's synced with your phone otherwise the time isn't correct though. it's ok, but wouldn't buy again. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vu/products/47974199-xerfira-coband-k4-fitness-tracker-bluetooth-heart-rate-fitness-watch](https://www.desertcart.vu/products/47974199-xerfira-coband-k4-fitness-tracker-bluetooth-heart-rate-fitness-watch) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-12*