https://www.amazon.com/dp/B0160BBZR4/
WRIST BASED HEART RATE – Forerunner 235 utilizes Garmin’s very own wrist based heart rate sensor that tracks 24/7 – Activity Tracking Accuracy
LARGER SCREEN – A 44% larger screen than the 225 but the same physical size,Display size 1.23" (31.1 mm) diameter,Display resolution 215 x 180 pixels