When comparing Sensoria Fitness Socks vs Garmin Forerunner 235, the Slant community recommends Garmin Forerunner 235 for most people. In the question“What are the best fitness trackers that pair with iPhones?” Garmin Forerunner 235 is ranked 7th while Sensoria Fitness Socks is ranked 10th. The most important reason people chose Garmin Forerunner 235 is:
It's quite lightweight at 1.6oz and has a large bright display for easy reading while on the move in all types of lighting conditions. It's water resistant up to 50 meters so you're safe to wear it running in all types of weather.
Specs
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Pros
Pro Provides feedback on running technique through voice messages
Sensoria fitness tracker gathers information on how a runner puts pressure on their foot and analyzes it in real-time. If the sock notices something that could potentially cause injuries, it warns the runner with a voice message and suggests a way to improve his technique.
Pro Motivational audio cues
A virtual coach can be set up to congratulate when personal records get beaten, cheer when doing well, and warn when not doing as well as hoped. The frequency of audio cues can be adjusted.
Pro Allows adjusting settings to preferred running style
There are multiple valid ways of running. To accommodate runners of different styles, Sensoria fitness tracker allows setting up desired landing positions and cadence as well as turn on a metronome to help out with execution.

Pro Easy access to data
Sensoria provides companion apps for iOS, Android and Windows phones, as well as a web dashboard.

Pro Socks can be washed
Though the fitness tracker is not fully waterproof, the pressure sensitive electronic textile used in the socks can safely be washed and machine dried.
Pro Ideal tracker for runners
It's quite lightweight at 1.6oz and has a large bright display for easy reading while on the move in all types of lighting conditions. It's water resistant up to 50 meters so you're safe to wear it running in all types of weather.
Pro Quickly picks up a GPS signal
It picks up the GPS signal much faster than most other GPS fitness trackers available, so there is little waiting around for it to connect before you start your run.
Pro Customize the display screen to display the data most important to you
The display screens are fully customizable so you can control which stats you want to see.
Pro Extremely lightweight and comfortable
Despite the amount of hardware this tracker contains and it's large size, it's very lightweight and comfortable to wear.
Cons

Con Unreliable altimeter
The socks sometimes have trouble detecting changes in elevation.

Con Only one sock is active at a time
The socks feed data to a single anklet, and information for both feet can't be gathered at the same time yet. This functionality is planned.

Con Doesn't catch some bad running techniques
Currently the fitness tracker covers a relatively small subset of bad running techniques. It's possible to be in a situation where the technique is bad and the device is not aware of it.
Con Very few customization options currently available
Some of the fitness tracker's customization options are planned, but not yet available.
Con Has trouble tracking heart rate during intervals
During interval training when there is a frequent change of exertion, the Forerunner 235 has trouble continuously providing accurate readings. It's better suited for running with a sustained pace.
Con Needs to be recharged often
Garmin states the watch has a battery life of 11 hours training and 9 days of use as a watch, which is a fairly short charge compared to other fitness trackers.
However many people have found the actual charge to be much less, often needing to be recharged every couple of days.
