Premium Tech Premium Tech. Alvage Charger Compatible with Garmin Forerunner 35 35J 230 235 630 645 Music 735XT, Approach G10 S20, Vivomove HR, Lily - USB Charging Wanme Charger Compatible with Garmin Forerunner 35/30 / 235/230 / 630/645 / 645 Music / 735XT, Replacement Charging Cable for Garmin Vivomove HR, Lily, Approach G10 / S20 Smart Watch (3.3FT) $7.99 $ 7 . 99 If you want to use things like VO2max recovery predictor etc, then you need one that provides HR Variability data. Garmin straps provide that, of course, but some 3rd party ones don't (my Myzone one doesn't, for example). If you're only interested in pure HR numbers, then I think just about any Ant+ strap will be fine. A Garmin Forerunner 245 is a simple device with all of the same features as a Garmin Forerunner 45, but it also has a number of extras. Display (1,2″ vs. 1,04″ in size). Straps that can be replaced quickly (with a quick release). 7 year old Forerunner 235 still going strong. I know it's not a $1000+ super-watch like some of you lucky ducks are sporting, but I feel like even amortizated out over 7 years, my little 235 is still treating me like a king Creating your own watchface app for garmin device without coding. 148 x 205 vívoactive® HR Screen 215 x 180 Forerunner® 230 Forerunner® 235 Forerunner Tags: Garmin Connect Mobile, Garmin Forerunner 230, Garmin Forerunner 235, Garmin FR630 « A few quick thoughts on Polar’s new A360 with optical HR sensor Hands-on with See.Sense ICON Smart Bike Lights » Garmin Forerunner 235, Garmin Forerunner 620, Garmin Forerunner 630, Garmin Forerunner 225 220, Garmin Forerunner 230 See more: Special Feature: 9H Surface Hardness: Finish Type: 9H Surface Hardness: Water Resistance Level: Waterproof: Unit Count: 3.0 Count: Screen Surface Description: Glossy 5VgVF.