Missing some parts.
What they don't tell you in the advert, is that this is not a cycle computer. It's a display unit.
So, you cannot strap it to your bike and have it tell you how fast or far you are going.
You need to go buy some sensors, or take a phone with you, and use IT to use GPS with an app to work out the speed etc, and then it shows it on the display.
Pros: you can get the display layout you want. mostly.
It has a light.
It's solidly constructed.
I think it's waterproof. My Xoss unit filled up with water when it rained.
Uses button batteries, so you don't have to plug it in to charge it.
Cons: smaller than it looks in the advert.
You need to buy more things to have this work.
You need a celphone to program this thing. And the internet of course. Kinda expected, but it is NOT an optional extra.
Uses 2x button batteries, so you need to buy more of them every few months.
Verified purchase: YesCondition: New