Question: what is the difference between versa and blaze?
Answer: When it comes to functionality, there's one key difference between the two: The Fitbit Versa is waterproof up to 50 meters while the Blaze is not. ... Additionally, the Versa and Blaze feature optical heart rate monitors, so you won't have to wear a bulky chest strap during workouts — the devices do it all from your wrist.