The computers I've used over the years. My favourite one is still the Uemis SDA.
Suunto Vyper 2
+ works forever on a battery
+ reliable
+ user replaceable battery
+ battery is a standard model
+ Supported by pretty much all 3rd party diving log software
o Has a reputation of being conservative; may punish weird dives severely. Not run into this myself
- Back-light has no always on option
- Compass next to useless
- Expensive uplink cable
- Buttons could use better feedback
Uemis SDA
+ OLED display
+ Wireless Air Integrated
+ Battery charges through USB
+ No add-ons required to connect to computer, proprietary clip included.
+ Huge dive log buffer. (150 dives in it and not even 5% full)
+ AI transmitter has proven very reliable
+ Clever strap
+ Easy to use buttons, even with thick gloves
o rechargeable battery
o company no longer exists
- no user replaceable battery (although technically doable)
- battery has proven to be unreliable
Liquivision Kaon
+ OLED display
+ Fairly small and light
+ User replaceable battery
+ Integrated bungee mount option
+ Tapping system
- Uses a very specific battery
- Expensive uplink cable
Mares Matrix (friend bought this one)
+ watch sized
+ continuous back-light option
+ decent compass
+ Battery charges through USB
+ No add-ons required to connect to computer, proprietary clip included.
o no user replaceable battery
o small display due to watch size
- Battery life low for a watch
- Small buttons
Suunto Vyper 2
+ works forever on a battery
+ reliable
+ user replaceable battery
+ battery is a standard model
+ Supported by pretty much all 3rd party diving log software
o Has a reputation of being conservative; may punish weird dives severely. Not run into this myself
- Back-light has no always on option
- Compass next to useless
- Expensive uplink cable
- Buttons could use better feedback
Uemis SDA
+ OLED display
+ Wireless Air Integrated
+ Battery charges through USB
+ No add-ons required to connect to computer, proprietary clip included.
+ Huge dive log buffer. (150 dives in it and not even 5% full)
+ AI transmitter has proven very reliable
+ Clever strap
+ Easy to use buttons, even with thick gloves
o rechargeable battery
o company no longer exists
- no user replaceable battery (although technically doable)
- battery has proven to be unreliable
Liquivision Kaon
+ OLED display
+ Fairly small and light
+ User replaceable battery
+ Integrated bungee mount option
+ Tapping system
- Uses a very specific battery
- Expensive uplink cable
Mares Matrix (friend bought this one)
+ watch sized
+ continuous back-light option
+ decent compass
+ Battery charges through USB
+ No add-ons required to connect to computer, proprietary clip included.
o no user replaceable battery
o small display due to watch size
- Battery life low for a watch
- Small buttons
