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The UBON SW-211 Maxfit is a screenless fitness band that sends its metrics to the Da Halo app. Digit reviewer Ashish Singh found the display-free experience increasingly appealing, but felt the limited context around some health readings, basic workout summaries and occasional sync problems made the data harder to use. His review is one person’s hands-on assessment, not a controlled accuracy test.
What it is like to use a fitness band with no screen
The Maxfit has no display, so you cannot glance at your wrist for metrics or notifications; Da Halo is where the information appears. Singh initially missed having a screen, then found the quieter wrist experience soothing. As he put it, “In fact, the screenless approach ended up being one of my favourite things about Maxfit.”
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The trade-off is deliberate: you check information in the app when you want it rather than having it presented on your wrist. Singh found Da Halo clean and easy to navigate, and liked its Daily Recovery score as a simple snapshot. That positive impression did not extend to every metric: he found the stress score unconvincing during his testing.
How useful are the sleep and health readings?
Sleep
Da Halo showed awake time, sleep latency, sleep efficiency and sleep timing. Singh’s sleep score generally landed between 65 and 80 during his testing. He found the display understandable, but more descriptive than explanatory: it showed what had happened without giving much reason or context for the result.
#1 Best Overall
- No APP & Phone Required Fitness Tracker Watch: This Fitness Tracker watch doesn't require any App or smartphone connections! It's as simple to use as a regular watch but smarter. Perfect for anyone looking for an easy fitness tracker without the hassle of smartphone setups.
- Heart Rate and Sleep Monitoring: The Fitness Tracker monitors your heart rate automatically all day, and you can select manual mode through the App. The fitness Watch also monitors your sleep at night, providing a detailed analysis of your sleep quality (deep sleep, light sleep, awake time). It is a health advisor for women men in daily life.
- Multi Sport Modes with Activity Tracking: The fitness tracker features 9 sport modes like running, walking and more. Additionally, the activity tracker records daily steps, calories burned, walking distance and active time throughout the day. You can also set a daily steps goals through the App to track your progress.
- Smart Notification Reminder: You can get SMS messages, and SNS notifications directly on your wrist including Facebook, Twitter, Gmail ect. You won't miss any important calls and message and stay updated. Please note: the smart watch can not make calls or text.
- Long Battery Life and IP68 Waterproof: This smart watch only requires 2 hours of charging and can be used for 5-7 days continuously, IP68 waterproof rating can withstand daily sweat, washing hands and rainy day, allowing you to fully enjoy your workouts.
Singh said the broad sleep picture sometimes resembled what he saw on an Apple Watch Series 12, but he trusted the Apple Watch more when readings differed. That is his individual comparison, not a validation of either device.
Heart-rate variability
Singh observed Maxfit HRV readings around 21–25 ms, compared with roughly 50 ms on his Apple Watch Series 12. Those figures should not be treated as a direct accuracy comparison: devices can differ in measurement methods, timing and algorithms. The clearer criticism is that Da Halo did not give him enough context to interpret the Maxfit number confidently.
Other measurements
In Singh’s comparisons, day-to-day and resting heart-rate readings were generally close to his Apple Watch readings, with more difference during exercise. Blood oxygen readings were broadly similar, while steps and calories were reasonably close but not identical. On one walk of roughly 2,000 steps, he reported a difference of around 200 steps. These are observations from one reviewer under unspecified conditions, not general error rates.
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- 【All-day Activity Tracker】: ENGERWALL IP68 Waterproof fitness tracker can record and track your daily steps, calories burned, exercise distance and time. It can also monitor your Body Temp, Heart Rate, Blood Oxygen and Blood Pressure. IP68 waterproof ensures that you don't need to take it off for daily hand washing and swimming, but don't soak it in water for a long time or wear it for hot baths, saunas.
- 【Slim and simple band design】The design concept of this tracker’s band is slim and unique, offering a comfortable and lightweight wearing experience. Suitable for men, women and the elderly.
- 【Heart Rate Monitor and Sleep Tracker】: Smart tracker can detect heart rate, blood pressure, blood oxygen, and body temperature in daily life. Monitor your sleep and analyze your sleep quality through Fall Sleep, Deep Sleep, Light Sleep, REM Sleep. You can view daily, weekly, and monthly data in the APP "Runmefit" to help you better understand your health status and lead a healthy lifestyle. [IMPORTANT] The blood pressure measurement feature must be downloaded and enabled within the app.
- 【Call and message notifications】: You can receive text messages and SNS notifications (including Facebook, Twitter, WhatsApp and Instagram) directly on your wrist. When your phone's Bluetooth is turned on, if you receive a message, the watch will vibrate to remind you and you can view the specific message. This function is very practical whether in work or life.
- 【Working Time】: Smart Fitness Watch is the best partner at work, you can set it on the mobile APP ‘Runmefit’: up to 5 sets of alarms, you don’t have to worry about being late for appointments or forgetting important things. You can set drinking Water Reminders and Sedentary Reminders to establish a healthy way of working.
Are workouts detailed, and does syncing work reliably?
UBON advertises more than 100 sports modes, but Singh found the workout records basic rather than deeply analytical. He also encountered delayed syncing or occasions when data did not appear. A large mode count therefore does not, by itself, tell you how much detail you will get after a workout or how consistently it will reach the app.
Comfort, sleep wear and water exposure
Singh described the strap as decent, but said it stayed wet after bathing and could feel itchy if he put the band back on immediately. He also found the underside sensors somewhat bulky, making the band less comfortable to wear during sleep. These are his personal comfort observations; the review does not establish a water-resistance rating.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Battery life: manufacturer claim versus the reviewer’s experience
UBON claims up to 30 days of active use and up to 60 days on standby, as reported by Digit. Singh could not verify the full 30-day active-use claim during the review period. He observed the battery fall from 100% to 48% after roughly a week, then rise to 68% after around 20–25 minutes of charging from a laptop. Those shorter figures describe his experience, not a repeatable battery test.
Rank #3
![Apple Watch Series 11 [GPS 42mm] Smartwatch with Rose Gold Aluminum Case with Light Blush Sport Band - S/M. Sleep Score, Fitness Tracker, Health Monitoring, Always-On Display, Water Resistant](https://m.media-amazon.com/images/I/31caPPnRysL._SL160_.jpg)
- A FULL-FEATURED HEALTH TRACKER—Apple Watch Series 11 gives you invaluable insights about your body, right from your wrist. Take an ECG anytime* and get alerts for a high and low heart rate or an irregular rhythm*—so you can stay closer to your heart. You can also view your overnight health tracking metrics with the Vitals app* and be notified of possible sleep apnea.*
- KNOW YOUR SLEEP SCORE—With advanced sleep tracking, Series 11 gives you a daily sleep score. It’s an easy way to help measure and understand the quality of your sleep, so you can make it more restorative.
- GET HYPERTENSION NOTIFICATIONS—Did you know that Series 11 can spot signs of chronic high blood pressure? By analyzing how your blood vessels respond to beats of the heart, it can notify you of possible hypertension.*
- SAFETY FEATURES—A smartwatch that puts your safety first. Series 11 can detect a hard fall or severe car crash, automatically help connect you with emergency services, and notify your emergency contacts.* Check In can automatically notify a loved one when you’ve arrived at your destination.
- A POWERFUL FITNESS TRACKER—With advanced metrics and motivating features like Pacer, Heart Rate Zones, training load, and Workout Buddy powered by Apple Intelligence from your nearby iPhone*—Series 11 is made to help everyone stay active, from runners and hikers to strength-training enthusiasts.
Price and whether it is worth buying
Digit described the review price as around ₹6,000, while UBON’s storefront listing showed ₹6,999 when observed in 2026. These are different source figures, and prices can change; check the current Indian price before buying. Singh’s verdict was to wait for a price drop.
The Maxfit makes the most sense if you specifically want a display-free wrist experience and are comfortable opening an app for your metrics. If your main reason to buy is trustworthy, well-explained health insights or detailed workout analysis, Singh’s review points to a weaker fit: some readings lacked interpretation, workout records were basic, and syncing was not always smooth. The evidence available here is one reviewer’s experience; it does not establish population-level accuracy or clinical validation.
Quick Recap
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