The Atom SL 5.0 has all the features of the 3.0 plus altimeter, dual bike settings, and transmitter low battery indicator. Extended range digital wireless transmitter ensure strong data transmission. The barometrically measured altimeter is extremely accurate. Personalize with 3 choices of colors.
Strengths: Small, easy to read, accurate, lots of information, easy to install (except the magnet)
Weaknesses: The wheel magnet. I wish companies would include magnets with mounts that can be place on wheels with thicker spokes. I have Kyseriums and the magnet doesn't mount on the blade so now I have to spend another $10 for a Kyserium magnet.
Yes, I would buy it again but I'd know that I'd also need to get a magnet to work on my blade spokes.