Garmin Forerunner 235 vs Garmin Forerunner 735XT comparison on basis of features design display battery, reviews & ratings and much more with full phone specifications at Gadgets Now has a cellular module. Garmin Forerunner 230. Devices that use cellular technology can connect to mobile networks. Cellular networks have much wider signal coverage than Wi-Fi. supports ANT+. Garmin Forerunner 230. ANT+ is a wireless protocol similar to Bluetooth Smart, and is very power efficient. Battery replacement. Vaddavvero over 7 years ago. Hi, I'd like to known if it's possible to replace Forerunner 235 battery. I'm planning to buy a unit but this question is a crucial point. 300€ for a device and after (maybe) 1 year you need do buy new one ??? Only lack interval training, workout calendar, VO2max etc compare to 230/235, and if you can tolerate the aesthetic of VAHR, touch screen is meh for wet conditions (sweaty/raining). FR 230 / 235 I would get 230 ($200) & Scosche RHYTHM+ ($79), but it's up to you if you want wrist HR or not (wrist HR is less accurate & battery consuming). Design. is dustproof and water-resistant. Garmin Forerunner 235. Garmin Forerunner 245. The device is dustproof and water-resistant. Water-resistant devices can resist the penetration of water, such as powerful water jets, but not being submerged into water. sweat resistance. Garmin Forerunner 235. The Forerunner 735 is simply a better watch, with regards to battery life and features. I had a lot of problems with the battery on my 235 and when I got a 735 on sale I was very happy with it. However, note that you'll have to get the HRM-Run strap or possibly the RD pod to get Running Dynamics. Garmin Forerunner 230/235 Courses. So I got a Forerunner 235 for $250 while they were on sale. I didn't realize they didn't support courses - oops. It's not extremely important to me to be able to track my courses, but it sure would be nice because I always have in the past with my phone Managing Notifications. You can use your compatible smartphone to manage notifications that appear on your Forerunner® device. If you are using an Apple ® device, use the notification center settings on your smartphone to select the items to show on the device. If you are using an Android™ device, use the app settings in the Garmin Connect PlLV4f.