You are reading a single comment by @HughB and its replies.
Click here to read the full conversation.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@HughB
Bangle 1 in my experience was only accurate to within 20m. 2.5 is extremely good accuracy.
The only application I can think of where you might need better than 2.5m accuracy is geo-caching. Different chips will have different accuracy, you cant expect them to be the same. These chips will be priced down to rock bottom, probably less than $1. At that price compromises will be made (eg quality control).