Variometer

Vario-Comparison	EOS 57	EOS 80	ERA 57	ERA 80	Helios

Vario indicator	Analog	Analog	Digital	Digital	Analog
Size in mm	60 x 60 x 76	82 x 82 x 52	62 x 62 x 52	82 x 82 x 52	60 x 60 x 63
Display	1,8"	2,7"	2,5"	3,5"	1,8"
int. Battery	up to 3 Std.	up to 3 Std.	up to 3 Std.	up to 3 Std.	up to 3 Std.
IGC Logger	yes	yes	yes	yes	no
MOP sensor	optional	optional	optional	optional	no
AHRS	optional	optional	optional	optional	optional
Bluetooth	yes	yes	yes	yes	no
WiFi	no	yes	yes	yes	no
APT Navigation	no	yes	yes	yes	no
TSK Navigation	yes	yes	yes	yes	no
TP Navigation	yes	yes	yes	yes	yes
NRST Navigation	no	yes	yes	yes	no
Airspace support	no	yes	yes	yes	no
PNA/PDA	yes	yes	yes	yes	optional