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 Hi!!! During a session of trail runnig, on my spartan sport wrist hr, the ascension data give me always “-” After the session the data of ascension appears. Someone have the same problem? 
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 @riccardo baro model or non baro? Non-baro requires a good gps fix and gps must be on best mode for gps altitude data. 
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 No baro, maybe the next session I try to active glonass. Thanks for the tipe  
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 @riccardo I just try to active glonass gps but it always the same! During the session the ascension data is always “-“ 
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 @riccardo 
 Did you try a soft reset ? Maybe something is stuck

