Derny › Treadmills › Sole treadmills

Sole F89 · F85 · F80 · F63

Heart-rate speed control on a Sole treadmill.

Sole builds Bluetooth FTMS, the open fitness machine standard Derny uses, into its current treadmills. On the models where Sole says apps can send commands, Derny should set the belt speed from your heart rate. On the others, Derny should still coach you through the run. We haven’t tested a Sole ourselves yet.

At a glance

What to expect

Should workOn the F85 and F89, Derny should set the belt
SpeedSet by Derny on models that take speed commands. Otherwise Derny shows you the speed to run.
InclineAdaptive workouts set the speed and leave the incline to you on the console.
ConsoleSpeed buttons, Stop and the safety key always work.
You needThe Derny app on iPhone or Android, and a Bluetooth heart-rate strap or an Apple Watch.
AfterwardsRuns upload to Strava and save to Apple Health or Health Connect.

Model by model

What to expect on each Sole.

ModelWhat Sole saysWhat to expect in Derny
F89Full two-way Bluetooth FTMSDerny should set the belt speed
F85Full two-way Bluetooth FTMSDerny should set the belt speed
F80Bluetooth FTMSDerny sets the speed if the F80 accepts it, otherwise shows you the speed to run
F63Bluetooth, but not full two-way FTMSMost likely Derny shows you the speed to run, if it connects at all

“Two-way” is what matters: it means the treadmill accepts commands from an app, not just sending its speed out. Derny checks this when it connects rather than relying on the model name.

Two ways Derny can run it

Derny checks what your treadmill can do when it connects.

If it takes speed commands

Derny sets the belt

Derny changes the belt speed from your heart rate, never faster than the max auto speed you choose. Change the speed on the console any time and Derny carries on from there.

If it only reports its speed

You set the belt

Derny shows you the speed to run, for example “GO TO 6.0 mph”, and you press the console buttons. Your heart rate still decides what Derny asks for.

Getting started

Your first run

Workouts

What you can run

Adaptive Endurance

Hold one steady, easy heart rate, such as your zone 2, for the whole run. The speed comes down as you tire so you can keep holding it.

Adaptive Threshold

A warm-up, then three long hard blocks. Each block’s speed is based on how your heart responded to the one before.

Free workout or your own

Just run and record, or build your own workout with speed targets and heart-rate rules.

Staying in control

You can always take over

Ending the workout doesn’t stop the belt. Pause or End in Derny stops it changing the speed. To stop running, use Stop on the console or the safety key.

Questions people ask

Sole treadmills questions

Can an app control a Sole treadmill’s speed?

On the F85 and F89, Sole says yes: they use full two-way Bluetooth FTMS, so apps can send them commands. Derny should set their belt speed from your heart rate. We haven’t tested a Sole ourselves yet.

Does Derny work with the Sole F80?

It should connect, since Sole lists Bluetooth FTMS for the F80. If it accepts speed commands, Derny sets the belt. If not, Derny shows you the speed to run and you set it on the console.

Does Derny work with the Sole F63?

Possibly, as a run where you set the speed. Sole says the F63 doesn’t support full two-way FTMS, so Derny most likely can’t set its belt, and we haven’t confirmed it connects.

How do I stop the belt?

Press Stop on the console or pull the safety key. Pausing or ending the workout in Derny stops it changing the speed, but doesn’t stop the belt.

Can I use Derny and Zwift at the same time?

Usually not. Most treadmills connect to one app at a time, so close the other app before you connect Derny.

Do my runs go to Strava?

Yes. Connect Strava once and every finished run or walk uploads on its own. Derny also saves it to Apple Health on iPhone or Health Connect on Android.

Own one?

Help make it work with Derny.

We haven’t run this treadmill ourselves yet, and we want Derny to work on as many treadmills as possible. If you own one, get in touch, whether it works perfectly, only shows you the speed, or doesn’t connect at all. Email the make and model to [email protected] and we’ll work with you to get it working. Not on a Sole? See treadmills.