Jeff, thanks for the comment. The devil’s in the details, so let me explain a few things.

First, the current Lifepro Sonic X is nowhere close to Ekrin B37. Granted, it used to be nearly identical to the B37, which we indicated in our review back then, but last year they replaced the product with a device that is more like the entry-level Ekrin 365 than the more advanced B37. Therefore, you should compare it directly to the 365 model, not B37.

Lifepro kept the model name and more or less the same price, but the product inside is different now. Many customers wouldn’t notice the change, including yourself, but if you take a closer look, you will see that the current Sonic X has a slimmer, and longer handle, USB-C charging, smaller battery (1600 mAh vs. 2550 in the old one), power meter and master power switch at the bottom – just like the Ekrin 365 (B37 and old Sonic X didn’t have those). And quite obviously, since the 365 and Sonic X are entry-level devices, their performance is inferior to the B37.

Second, the price. Ekrin 365 is cheaper than the current Sonic X. You can buy it for $143 with the MGA20 discount code vs. $157.5 at lifeprofitness.com with the MGA10 code).

So yes, we think the B37 is an excellent value for the money device, and we don’t like the trick Lifepro did to keep selling different hardware under the same name.

With all that being said, we need to update our old Sonic X review to reflect the change of the device, and we will do it soon.