Sure, a WiFi-equipped scale may be good enough for most people -- since, you know, you're likely to keep your scale in your house -- but it looks like those not satisfied do now have another option in the form of BodyTrace's new GSM-enabled eScale. Of course, the big advantage here is ease of setup rather than portability, since you'll be able to automatically (and privately) upload your weight to the BodyTrace website without having to first mess with WiFi settings and whatnot. Somewhat surprisingly, the eScale is also actually cheaper than something like Withings' WiFi scale , with it running just $59.99 including a year of service -- or, alternatively, $9.99 a month with a $9.99 up-front setup fee (which also includes the scale).