Our conclusion The complete answer, at four times the price of the cheap route. The on-board recording is the feature that justifies it.
Garmin’s bundle is the premium end of this hub, and it earns the position with a capability the cheap sensors do not have.
What the manufacturer publishes
Both the Speed Sensor 2 and the Cadence Sensor 2. Real-time transmission of speed, distance and cadence over ANT+ and Bluetooth 5.0 to Garmin GPS bike computers, GPS watches and other compatible devices. Recording and storage of distance on the sensor for later analysis in Garmin Connect. Recording of cadence for the same. Hub mounting for the speed sensor.
The on-board storage
This is the feature. A speed sensor that stores distance means a commute is logged whether or not you took a computer, and the data appears next time the sensor is in range of a phone. For anyone tracking annual distance without wanting a device on the bars every day, that is the whole product.
Bluetooth 5.0
A generation ahead of the 4.0 in the cheaper sensors here, which in practice means better range and lower power draw rather than anything you will see on screen.
The price question
Roughly four times a single dual-mode sensor, and about double a pair of them. What the money buys is both measurements without mode juggling, the storage feature, and a maker whose sensors will still be supported in five years.
What we rate and what we flag
Strengths
Both sensors in one purchase, so no second order and no mode-switching
On-board recording, so a ride is captured even with no head unit or phone on the bike
Bluetooth 5.0 rather than 4.0, and listed on all six markets
Compromises
Roughly four times the price of a single dual-mode sensor here
The stored-data feature is most useful inside the Garmin ecosystem
No battery life figure published on this listing
Where this model is listed
A listing is not an offer: the reference exists on these stores, availability changes daily.
France
Germany
Italy
Spain
United Kingdom
United States
Specifications
Contents
Speed Sensor 2 and Cadence Sensor 2
Protocols
ANT+ and Bluetooth 5.0
Storage
Records and stores distance on the sensor
Mounting
Wheel hub (speed), crank arm (cadence)
Amazon reference
B07PG9MJ79 (identical on 6 markets)
EAN
0753759222550
The questions riders ask
Can it record without a bike computer?
Garmin states that the sensors record and store distance for later analysis in Garmin Connect, so a commute is captured without a head unit on the bars.
Where do they mount?
The speed sensor mounts on the wheel hub and the cadence sensor on the crank arm. Both are magnet-free.
Our score
8.4/ 10
The complete answer, at four times the price of the cheap route. The on-board recording is the feature that justifies it.
Who buys this one, among bike gear
Garmin users who want both measurements, and anyone who wants rides logged without carrying a computer.
Amazon reports what buyers took in the month before this page was last checked: at least 50.
The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.
Sources
Specifications: the manufacturer sheet for bike gear and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
Speed/cadence · Bluetooth and ANT+ · IP67 · app compatible
A dual-protocol speed and cadence sensor with a published IP67 rating and stated compatibility with Zwift, Rouvy, Ride with GPS, Peloton and Wahoo apps.
Best for: Indoor training, where named app compatibility and a sealed housing both earn their place.
Dual mode speed/cadence · ANT+ and Bluetooth 4.0 · magnet-free
The best-selling sensor in this hub: one unit that switches between speed and cadence mode by reseating the battery, broadcasting on both ANT+ and Bluetooth.
Best for: A first sensor, or a pair of them, at the price of a set of brake pads.