Audible Altimeter
Easy to use menu system
Up to 3 freefall (4th coming with an update)  and 3 canopy alarms
Rechargeable battery via USB-C connector (200 jumps or 2-4 weeks)
Save 100 Dollar in 10 years and help making our planet cleaner with saying NO, to single use batteries!
If you jump a tight helmet, like the G4, you really want a small audible!