Oct 3, 2026 Update date Android 10.0+ Android OS About Polar Sensor Logger Log and graph biosignals (HR/ECG/ACC/PPG/etc..) from Polar H10 & OH1 sensors This application can be used to log HR and other raw biosignals from the Polar H10, OH1 and Verity Sense -sensors. It uses Polar SDK (https://www.polar.com/en/developers/sdk) to connect sensors. One of the application's core feature is to save received sensor data to files on device, that can be then later accessed eg. via PC. User can also share saved files to eg. Google Drive or email them. - HR, PPi, Accelerometer, Gyro, Magnetometer and PPG - HR, PPi, Accelerometer and PPG - HR, RR, ECG and Accelerometer Application also supports sensor data forwarding using MQTT-protocol. Sensor firmware requirements: - H10 firmware 3.0.35 or later - OH1 firmware 2.0.8 or later - Device location and background location: In order to scan bluetooth devices, device location is required by the Android system. Background location is required in order to seek devices if application is not in the foreground. - All Files Access Permission: Data from the sensor is saved to files on the device and then they can be emailed, saved to Google drive, access via PC, etc... - Internet: Data sending to MQTT-broker Privacy Policy: This app does not collect user data (location/etc...) This application was made for my own purposes and it is not an official Polar app nor supported by Polar. Tested with Sony Xperia II Compact (Android 10), Nokia N1 Plus (Android 9), Samsung Galaxy S7 (Android 8), Sony Xperia Z5 Compact (Android 7.1.1) Here are the most frequently asked questions about the application: Q: What is the timestamp format? A: Timestamp format is nanoseconds and the epoch is 1.1.2000. Q: Why nanoseconds? A: Ask from Polar :) Q: What are the extra columns in HR data? A: They are RR-intervals in milliseconds. Q: Why there are sometimes 0-4 RR-intervals? A: Bluetooth exchanges data around 1 s intervals and if your heart rate is around 60 bpm, then almost every RR-interval hits between data transmission. If you have heartrate eg. 40, then your RR-interval is over 1s => not every BLE packet contain RR-interval. Then if your heartrate is eg. 180, then there is at least two RR-intervals in BLE packet. Q: What is the ECG sampling frequency? A: It is around 130 Hz. Q: What does ECG, ACC, PPG, PPI mean? A: ECG = Electrocardiography (https://en.wikipedia.org/wiki/Electrocardiography), Acc = Accelerometer, PPG = Photoplethysmogram (https://en.wikipedia.org/wiki/Photoplethysmograph), PPI = Pulse-to-Pulse Interval Q: What does "Marker"-button do? A: Marker button will generate a marker file. Marker file will hold timestamps when the marker is started and stopped. You can use the marker to mark some events during the measurement. If you have more questions, please drop me an email!

Privacy policy: https://j-ware.com/polarsensorlogger/privacy_policy.html Thanks to Good Ware for few images! Marker icons created by Good Ware - Flaticon Additional APP Information Reinaldo Roberto Requires Android What's New in the Latest Version 0.33 Last updated on Oct 3, 2026 - Updated target SDK 36 Polar Sensor Logger Screenshots Old Versions of Polar Sensor Logger Polar Sensor Logger 0.33 Polar Sensor Logger 0.31 Polar Sensor Logger 0.30 Polar Sensor Logger Alternative Top rated Health & Fitness apps Popular Articles In Last 24 Hours Escape from Playtime' Now on Steam: What to Expect What to Expect From GTA 6: Four Weeks Out Minecraft Packed Ice Bricks and the Frozen October 2026 Updates Call of Duty: Modern Warfare 4 DMZ Early Access: What to Expect Rate Polar Sensor Logger APKPure - A multi-platform app store primarily focused on Android, providing extensive app-related content. Discover the app you want easier, faster, and safer, with quick and efficient downloads and installations. APK Signature Verification APK Download Service APKPure Premium Developer Console APK Website Builder Traffic Monetization with APKPure Business Cooperation Thank you for your support! You can now access all our premium features. You can check your subscription status and manage subscription information on from User Center - Manage My Subscription page. Your browsing on APKPure will be ad-free Your account will automatically have a member-exclusive avatar and badge You can access Premium services after logging in on both the website and the app client. You can now enjoy the Premium-exclusive faster download service.