V Band vs RDFit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
V Band
This app connects to your wearable device to track daily activity, including steps, calories burned, and sleep patterns. It offers historical data, goal setting, and timely reminders for calls, messages, and sedentary periods, ensuring you stay informed and motivated.
- Daily exercise step tracking
- Calorie and distance calculation
- Sleep monitoring (deep/light)
- Historical data statistics
- Exercise goal setting
- Notification reminders
- Sedentary and alarm reminders
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V Band is an application for providing data and services for your wearable devices, providing users with a complete, unified and convenient experience. Kind tips: - This app supports Apple "Health" authorization and can sync your steps, distance, and calorie consumption health data to the "Health" app.
RDFit
This app synchronizes with HealthKit to read and write health data. It's developed by a company specializing in smart wearables and electronic products.
- HealthKit integration
- Read Health data
- Write Health data
- Smart wearable device support
- Electronic product integration
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RDFit app integrates HealthKit to read and write some data in the Health app. Runde Intelligent Communication is a high-tech company integrating R&D and production of mobile phones and peripheral products, smart wearable devices, and operating e-commerce; R&D and sales of electronic products, digital products, and smart products; electronic software development, electronic products, communication products, and mobile phones , Communication switching equipment, digital integrated system equipment, special electronic equipment, software product design, technology development and technical consulting and sales; computer software, computer network software development; domestic trade, operating import and export business. users to seek a doctor’s advice in addition to using this app and before making any medical decisions.
Screenshots
Verdict
V Band and RDFit both sit at 2.9 stars, but that hides the real split: 45% of RDFit's written reviews are positive against 13% of V Band's. RDFit also leads on ratings volume (3.1K vs 132). On price, rating, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 2.9 for V Band against 2.8 for RDFit. That said, the two scores are not equally well evidenced: RDFit has 3.1K ratings behind it against 132, so its average is the more settled of the two. Written reviews are what separate them: 13% of V Band's written reviews are positive against 45% of RDFit's.
V Band ships an update every 2 weeks, RDFit fortnightly. Both last shipped on November 3, 2026.
| Parameter | V Band | RDFit |
|---|---|---|
| Price | Free | Free |
| Rating | 2.9 (132 ratings) — better | 2.8 (3.1K ratings) |
| Positive reviews | 13.2% of reviews | 45.5% of reviews — better |
| Number of ratings | 132 | 3.1K — better |
| Update frequency | Every 2 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 157 MB | 290 MB |
| Age rating | 4+ | 4+ |
| Developer | 创升 范 | 深圳市润德智能通讯科技有限公司 |
Customer experience
V Band
RDFit
User reviews
V Band
From 132 App Store ratingsWhat we love
- 👍 Works fine (for some)
- 👍 Pedometer functionality
- 👍 Heart rate, BP, Oxygen tracking (sometimes)
- 👍 Shows texts and emails
- 👍 Music playback control (limited)
Room to improve
- 🐛 Connection issues
- 🐛 Incompatible with many devices
- 🐛 Time/Date sync problems
- 🐛 Setup difficulties
- 🐛 Data not syncing
RDFit
From 3.1K App Store ratingsWhat we love
- 👍 Easy to use interface
- ⌚ Beautiful watch design and appearance
- ❤️ Health monitoring features (blood sugar, blood pressure)
- 🎨 Customizable watch faces available
- 📱 Good app connectivity when working properly
Room to improve
- 🐛 Frequent app crashes and freezing
- 📲 Poor notification system (missing SMS/text messages)
- 🔌 Limited watch face customization (only one downloadable at a time)
- 🔗 Unreliable Bluetooth connection and pairing issues
- 📊 Inaccurate health metrics and sensor readings
Bugs and requests
V Band
Reported bugs
48 issues- App doesn't support connected devices
- Cannot pair watch with app
- New version incompatible with watches
- Cannot set time and date
- Watch doesn't connect to phone
Show 43 moreShow fewer
- App doesn't recognize watch
- Dial library is empty
- Earphone doesn't connect for music/calls
- Date not showing on watch faces
- Connection failed for calls
- App doesn't store info
- Watch keeps restarting
- Blood pressure/body temp/oxygen remain static
- Nothing works
- Watch doesn't pair after 6 months
- No reply from support
- Sleep tracking logs sitting at desk as sleep
- Weather won't change to Fahrenheit
- Watch and app keep disconnecting
- Weather is wrong and cannot be fixed
- Unable to call out (Bluetooth/music sign error)
- Cannot answer calls
- Watch won't update time/other info
- Cannot change units from metric
- App doesn't find watch to sync
- Custom clock face reverts
- Wake up by lifting hands randomly turns on
- Watch time won't stay in sync
- Measurement is in KM, cannot switch to miles
- App doesn't recognize sport mode
- Sport mode doesn't work
- Doesn't transfer much data to Apple Health
- Watch interferes with other V band watches
- Cannot pair with phone
- Body temperature measurement shows different units in app vs watch
- Weather not showing on watch when using iPhone
- Weather notification stuck at 20C
- Watch won't connect Bluetooth for watch itself
- Screen won't turn on
- No access to watch applications
- Watch won't power on
- Cannot get out of metric system
- Pairing issues with iOS 14
- Pairing issues with iPhone 11
- Pairing issues with iPhone 7 Plus
- Pairing issues with iPhone 11 Pro Max (if phone paired first)
- Pairing issues with iPhone 12
- Watch doesn't connect for music
Requested features
6 requests- Add API for Apple Health export
- More watch faces
- Ability to control phone music playback on phone
- Customizable clock numbers
- Add keyboard to watch
Show 1 moreShow fewer
- Option to use W Fit app for T92 Pro
RDFit
Reported bugs
17 issues- App crashes on startup and during synchronization
- App crashes after recent updates
- Watch locks for no reason and cannot unlock
- GPS feature not connecting despite proper setup
- Automatic Bluetooth connection fails
Show 12 moreShow fewer
- SMS/text notifications not received
- Steps not syncing to Apple Health
- Health metrics not syncing properly
- Watch face downloads disappear after 1-2 days
- App not detecting connected watch
- Wallpaper customization crashes app
- Watch band adjustment tool ineffective
- Biometric sensors detect readings without wearing watch
- App crashes when changing wallpaper
- Language settings stuck in non-English languages
- Watch model not displayed in app after extended use
- No software updates received on watch
Requested features
16 requests- Add more watch face options and styles
- Allow multiple watch faces to be downloaded simultaneously
- Implement SMS/text message notifications
- Add Apple Watch-style watch faces
- Enable custom watch face editing with more customization options
Show 11 moreShow fewer
- Add games to the watch
- Support for app store/Google Play integration
- Improve watch face market with better selection
- Add automatic daylight saving time adjustment
- Support for blood glucose measurement in different units (mmol vs dl)
- Add Memoji and font customization options
- Include more live watch faces
- Add NFC card copying functionality
- Improve QR code setup functionality
- Add custom wallpaper with better clearing options
- Support for language settings (English option)
In-app purchases
V Band
No in-app purchases
RDFit
No in-app purchases
