RDFit

RDFit

Shenzhen Runde Intelligent Communication
★★★☆☆ 3.2 Health & Fitness v4.1.3 5,000,000+
Verified Safe & Direct
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RDFit Screenshot 1RDFit Screenshot 2RDFit Screenshot 3RDFit Screenshot 4RDFit Screenshot 5
Version
4.1.3
Downloads
5,000,000+
Updated
Jun 16, 2026
Developer
Shenzhen Runde Intelligent Communication
Category
Health & Fitness
Content Rating
Everyone
Package
com.rd.tengfei.bdnotification
Platform
Android

Download Sources

Device Configuration

Split APKs Installation Guide

Some apps are distributed as Split APKs (multiple .apk files packaged together) to optimize resources. Standard Android installers cannot open them.

1. Download Split APKs Installer (SAI) from Google Play Store.
2. Download the app archive (.apks) using the download sources listed above.
3. Open SAI, click "Install APKs", choose the downloaded archive, and click Install.

About this app

RDFit is a connected device companion app that enable sending and receiving of SMS or calls, connects to our smartwatches(device model: IW7 MAX, PS9Ultra2) via Bluetooth,with the user's permission, can push SMS and other app messages to the watch, then view them on the watch, and when an incoming call comes in, it can answer, reject, or reply to SMS on the watch. You can also make calls in the watch address book on the watch to facilitate the user's daily life. RDFit can also detect and evaluate the user's daily activity data, step count, sleep, heart rate, and many other functions. Help you monitor and adjust your daily activities and life.
Special statement:non-medical use, only for general fitness/wellness purpose.

User Reviews

Ameer Fathi Mar 22, 2026
★★☆☆☆

After the latest update, everything has gone very badly. Errors have appeared; the program has started disconnecting from the watch, so it doesn't send notifications or make calls. Also, when I open the program, it closes immediately and sends me error messages. Therefore, please fix this problem quickly, or revert to the previous version, which was much more stable.

Mandi Feb 10, 2026
★☆☆☆☆

If there was 0 stars I'd put 0. With this app it behaves just as an analog watch does. It connects to Bluetooth but will not connect to the phone. I can't personalize anything with this app. I am not able to change the wall paper because it will not connect. can't do any of the other functions that I'm supposed to be using. Unfortunately there is no other app that will work with my watch. I am about to buy me a new watch that uses a different app. This app is ridiculous!!

Robert Sherry Jan 8, 2026
★★☆☆☆

The sleep tracking mode has only worked a few times before stopping completely, and keeping track of other modes is difficult requiring the user to constantly add the data instead of having the data automatically added. Also the subscription price is about the same as what I paid for the watch while not disclosing that a subscription was needed. If I had known that I would have gotten a better watch, like the Samsung smart watches or other high end smart watches or rings!!

Justin Smith Oct 22, 2023
★★☆☆☆

The interface is set and cannot be customized to display exactly what I would like. Viewing my cycling data is confusing and appears incomplete, not tracking my full route, and there appears to be two different categories of data, one for my track and another section of biometrics. I would like to be able to see my biometrics while I was cycling! I would not recommend this app, but as far as I know devices are not comparable with other apps, which is disappointing, I love my device!

How to Download RDFit APK

  1. Enter the package name com.rd.tengfei.bdnotification on the APK Downloader.
  2. Select your device architecture (ARM64 recommended for modern devices).
  3. Click Download to get the merged APK file.
  4. Transfer and install the APK on your Android device.
  5. Keep Updated: Visit APKDER.COM regularly to search for and download the latest secure versions of your favorite apps.

Security & Signature Verification

This APK download is 100% safe. We verify that the cryptographic signature of the file matches the official developer credentials. No modifications or adware are injected.

Device & app history Basic Access
  • retrieve running apps
  • read sensitive log data
Contacts Special Access
  • read your contacts
Location Special Access
  • approximate location (network-based)
  • precise location (GPS and network-based)
  • access extra location provider commands
SMS Basic Access
  • read your text messages (SMS or MMS)
  • send SMS messages
Phone Special Access
  • reroute outgoing calls
  • read call log
  • read phone status and identity
Photos/Media/Files Basic Access
  • read the contents of your USB storage
  • modify or delete the contents of your USB storage
Storage Basic Access
  • read the contents of your USB storage
  • modify or delete the contents of your USB storage
Camera Special Access
  • take pictures and videos
Wi-Fi connection information Basic Access
  • view Wi-Fi connections
Device ID & call information Special Access
  • read phone status and identity
Other Basic Access
  • view network connections
  • pair with Bluetooth devices
  • access Bluetooth settings
  • send sticky broadcast
  • connect and disconnect from Wi-Fi
  • control flashlight
  • full network access
  • change your audio settings
  • control Near Field Communication
  • run at startup
  • reorder running apps
  • draw over other apps
  • control vibration
  • prevent device from sleeping
  • bind to an accessibility service
  • power device on or off
  • test hardware
  • transmit infrared

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