The F5 (non plus) was plagued with ANT+ and Bluetooth issues. If you can’t find a deal on the F5+, I’d opt for the 935 (but check the unit you’re buying to make sure all the buttons are working properly).
As a longterm Garmin user (910XT, Fenix 3, 935, 945) I agree 100%. The 935 is a rock solid device.
And one more thing to add: do not buy a F5+, this is a very flawed device which is more or less off the update cycle.
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