Unsure whether this is the best price ever for it (usually $69), but seems to be a well reviewed item on PB Tech, on Mighty Ape, and on Amazon.
(Global Version) Black
Color AMOLED Touch Screen
5ATM Water Resistant
Music Control
Six Workout Modes
Excellent Battery Life (Up to 20 days)
Bluetooth 5.0
Lowest price I've seen. I got mine in a $45 sale last year. Great battery life — I use it to count steps and get phone notifications. You can customize the screen which is cool.
A new model has just come out which is more scratch-resistant and easier to charge (magnetic), but it'll probably be $65-90 when it gets to NZ.