Starting off with connections, the ROAM has a dual-band ANT+ and Bluetooth connection, so you can run all the sensors you want, like power, cadence, speed, heart rate, muscle oxygen, continuous glucose monitor (Supersapians) perspiration, crash detection, radar and most importantly, your phone. I might have mentioned this in the BOLT V2 review, but one of my main issues with the smaller unit is just the smaller screen size, which the ROAM V2 makes up for. I never did completely push the ROAM to it’s limit with battery life, but even after 10 hours on the road, connected to HR, power, and speed sensors, live tracking on my phone, and probably adding another hour of stop time at aid stations, I never came close to running out of battery.