The picture of the app shows power, is that really on the app when using speed and cadence sensor together?

I'm not sure how it would work on a real bike, but I use this on my spinner bike with Zwift, and what happens is the two sensors work together to create an estimate of power based on speed and cadence. Though it works well enough to get a workout and ride around on Zwift with a fixed gear spin cycle, the estimate is flawed because the faster I pedal, the faster the wheel spins, and the higher my power. It might work differently on a road bike with gears, where for example on a hill, you can produce high cadence and slow speed and vice versa low cadence and high speed on a flat or downhill. In any case, while it will produce a watts reading, it will likely be far less accurate than using a smart trainer or power meter crank/pedals.

Can you use this to track distance?

Yes, this sensor counts wheel revolutions, and if you have told the app how big the wheel is, it will measure distance traveled. The CycleBike+ (Amazon app ASIN: B01ANZYMDM) and CycleBike Smart (Amazon ASIN: B01N364PZR) Android apps use GPS to calibrate the wheel and combine the speed sensor and GPS data to measure distance. When you upload your ride to Strava, it makes its own distance calculation using the GPS waypoints. Find out more at www.cyclebikeapp.com

will this work with the tomtom spark 3?

Check on the wahoo website for compatible apps listed

Is this sensor water resistant?

The Wahoo RPM Speed and Cadence Sensors are rated to IPX7 specifications: waterproof up to 5 feet

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Wahoo RPMスピード/ケイデンスセンサー(iPhone、Android、およびサイクルコンピュータ用)

Wahoo RPMスピード/ケイデンスセンサー(iPhone、Android、およびサイクルコンピュータ用)

Product ID: 731893385

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Details

Brand
Wahoo
Color
ブラック
Item Weight
0.01 Kilograms
Sensor Type
速度センサー
Battery Cell Composition
Lithium

⚡Bluetooth 4.0 & ANT+ dual connectivity

🪶Ultra-lightweight 10g metal design

🚴‍♂️Real-time speed, cadence & distance tracking

Description

🚴‍♀️ Ride Smarter, Not Harder — Track Every Turn with Wahoo RPM!

SEAMLESS MULTI DEVICE SYNC - Effortlessly pairs with iPhone, Android & cycle computers via Bluetooth 4.0 and ANT+ for uninterrupted ride data.
PRECISION REAL TIME METRICS - Track your speed, cadence, and distance live to optimize every pedal stroke and crush your cycling goals.
INDOOR OUTDOOR VERSATILITY - Compatible with Zwift, TrainerRoad, and top fitness apps like Strava and RideWithGPS to keep your training on point anywhere.
COMPACT DURABLE METAL BUILD - Sleek black metal casing ensures long-lasting durability without weighing you down on the road or trail.
MAGNET FREE HASSLE FREE SETUP - Lightweight 10g sensor installs in seconds on any bike hub—no magnets, no fuss, just pure performance.

The Wahoo RPM Speed/Cadence Sensor is a compact, lightweight metal device that wirelessly connects via Bluetooth 4.0 and ANT+ to iPhone, Android, and cycle computers. It delivers real-time speed, cadence, and distance data, compatible with popular indoor cycling platforms like Zwift and TrainerRoad, as well as fitness apps such as Strava and MapMyRide. Easy to install without magnets, it’s designed for cyclists who demand precision and versatility in every ride.

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