Canon now has six very similar cameras on the market. The entire line offers a 57x zoom and footage capture on a 3.28 1/4.85 sensor--the R500 and R600 don't have any flash memory, the R50 and R60 have 8 GB and the R52 and R62 have 32 GB. The difference between the 2014 models (R500, R50, R52) and the 2015 ones (R600, R60, R62)? Wi-fi. Outside of wi-fi and blue accents on the exterior, the models are the same as the previous years. Since the 2014 models didn't see many updates either, Canon is starting to lag behind.
The prices, however, still allow these camcorders to compete with the other options on the market. Both the Sony PJ44 and Panasonic W570 are right in line price-wise. The Sony offers a built-in projector and a higher bit rate, though not quite as much zoom or memory, while the Panasonic has a secondary camera for picture-in-picture camera, though again, not as much zoom. Zoom appears to be the only perk on these models, and if Canon continues to only make mediocre updates here, they'll quickly drop in ratings. For now though, they still appear to be a safe buy, just compare carefully with the likes of the PJ440 and W570.