--- product_id: 147761124 title: "Delvfire Spark Slim Fitness Tracker with Heart Rate Monitor, Waterproof Fitness Watch Activity Tracker with Pedometer, Sleep Monitor, Step Counter, Calorie Counter for Kids, Women, Men - Apple Android" brand: "visit the delvfire store" price: "VT7790" currency: VUV in_stock: false reviews_count: 8 url: https://www.desertcart.vu/products/147761124-delvfire-spark-slim-fitness-tracker-with-heart-rate-monitor-waterproof store_origin: VU region: Vanuatu --- # Delvfire Spark Slim Fitness Tracker with Heart Rate Monitor, Waterproof Fitness Watch Activity Tracker with Pedometer, Sleep Monitor, Step Counter, Calorie Counter for Kids, Women, Men - Apple Android **Brand:** visit the delvfire store **Price:** VT7790 **Availability:** ❌ Out of Stock ## Quick Answers - **What is this?** Delvfire Spark Slim Fitness Tracker with Heart Rate Monitor, Waterproof Fitness Watch Activity Tracker with Pedometer, Sleep Monitor, Step Counter, Calorie Counter for Kids, Women, Men - Apple Android by visit the delvfire store - **How much does it cost?** VT7790 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/147761124-delvfire-spark-slim-fitness-tracker-with-heart-rate-monitor-waterproof) ## Best For - visit the delvfire store enthusiasts ## Why This Product - Trusted visit the delvfire store brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Full description not available ## Features - ACTIVITY TRACKER: Records steps, distance, calories burned and active minutes automatically. Set an exercise target and your fitness watch will vibrate and flash in celebration when you reach your goal. See your activity stats using the touch screen or in greater detail using the iOS / Android VeryFitPro app - HEART RATE MONITOR AND SLEEP QUALITY TRACKING: Continuous, automatic monitoring of your heart-rate throughout the day and night to help you better understand your health and fitness. Track your sleep quality during the night and see time spent in light and deep sleep cycles using the sleep monitor. Set an alarm and have your tracker watch wake you peacefully with a quiet vibration - CALL, TEXT & SOCIAL NOTIFICATIONS: See incoming calls, SMS text messages and notifications on your wrist from WhatsApp, Facebook, Instagram, Twitter, Skype and more - 5-DAY BATTERY WITH FAST CHARGING: With a long-lasting, durable battery, you can wear your activity watch for up to 5 days without needing to charge it. Simply plug it directly into any USB socket on a computer, mobile phone/tablet charger or power bank all without the need for messy cables or special plugs. Fully charged in around 1 hour - MONEY BACK GUARANTEE: Our fitness trackers and smart watches comes with a full 30-Day no-risk, no-nonsense 100% Money Back Guarantee. Either you're thrilled, or we don't want to keep your money! PLUS every Delvfire smartwatch comes with a full 1 Year Warranty and Top Notch Customer Care from the Delvfire team based in the United Kingdom ## Images ![Delvfire Spark Slim Fitness Tracker with Heart Rate Monitor, Waterproof Fitness Watch Activity Tracker with Pedometer, Sleep Monitor, Step Counter, Calorie Counter for Kids, Women, Men - Apple Android - Image 1](https://images-na.ssl-images-amazon.com/images/I/51dSGRJv-LL.jpg) ![Delvfire Spark Slim Fitness Tracker with Heart Rate Monitor, Waterproof Fitness Watch Activity Tracker with Pedometer, Sleep Monitor, Step Counter, Calorie Counter for Kids, Women, Men - Apple Android - Image 2](https://images-na.ssl-images-amazon.com/images/I/51eq1K%2BdxeL.jpg) ![Delvfire Spark Slim Fitness Tracker with Heart Rate Monitor, Waterproof Fitness Watch Activity Tracker with Pedometer, Sleep Monitor, Step Counter, Calorie Counter for Kids, Women, Men - Apple Android - Image 3](https://images-na.ssl-images-amazon.com/images/I/61QgoNZ%2B9jL.jpg) ![Delvfire Spark Slim Fitness Tracker with Heart Rate Monitor, Waterproof Fitness Watch Activity Tracker with Pedometer, Sleep Monitor, Step Counter, Calorie Counter for Kids, Women, Men - Apple Android - Image 4](https://images-na.ssl-images-amazon.com/images/I/81rVqVW%2B-kL.jpg) ![Delvfire Spark Slim Fitness Tracker with Heart Rate Monitor, Waterproof Fitness Watch Activity Tracker with Pedometer, Sleep Monitor, Step Counter, Calorie Counter for Kids, Women, Men - Apple Android - Image 5](https://images-na.ssl-images-amazon.com/images/I/71V7XLQIngL.jpg) ## Customer Reviews ### ⭐⭐ Looks good, limited functionality *by E***S on Reviewed in the United Kingdom on 19 May 2020* The tracker is small and looks very smart. I love the fact that it's waterproof and you don't need a cable to charge it - you just plug the tracker itself into the USB port. But that's where the positives end. It is inaccurate - brief spells of stepping (less than 50) don't even register. Long runs (distance confirmed by a GPS tracker and Google Maps) register only partly (6km instead of 11km). Heart rate badly underestimated, even at peak of exercise it never shows more than 'slightly elevated'. Consequently calories burned are also significantly underestimated (e.g. an hour-long run at 10kph burned 300kcal, same number of calories burned whether I hike for an hour with a 10kg backpack or without). Finally, calories measured only when active, not while resting. Overall, it's not terrible but you get what you pay for, a pretty poor/basic product. ### ⭐⭐ Good product for the price *by M***T on Reviewed in the United Kingdom on 1 June 2019* I had difficulty doing the bracelet up and undoing it which is a great safety feature but very difficult for me. I also have a very small wrist and the face was too wide and bulky. I would have put up with this possibly if I could have undone the bracelet. I needed to use the tightest fixing which could have been my problem. ### ⭐⭐⭐⭐⭐ Impressed *by N***E on Reviewed in the United Kingdom on 15 November 2019* Been wearing this a few days before I left review!...battery still going after first initial charge!, I went for black and it looks smart. Its seems pretty accurate...as have tested the activity along side my samsung health app on phone and they match!..my only annoyance is that I find it difficult to remove straps to charge that's all. --- ## 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/147761124-delvfire-spark-slim-fitness-tracker-with-heart-rate-monitor-waterproof](https://www.desertcart.vu/products/147761124-delvfire-spark-slim-fitness-tracker-with-heart-rate-monitor-waterproof) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-10*