I had a look at the fit file from the Aqua, thinking maybe I could use fitfiletools’s file combiner, but the file is basically a stub:
MessageType,MessageName,CreateTime,productName,productName,manufacturer,fileType,
0,FileId,1751386926.0,Suunto Aqua,63,23 SUUNTO,4,
MessageType,MessageName,timestamp,event,type,
21,Event,1751385554,Timer,start,
MessageType,MessageName,timestamp,
20,Record,1751385554,
20,Record,1751386926,
MessageType,MessageName,timestamp,event,type,
21,Event,1751386926,Timer,stop,
MessageType,MessageName,timestamp,startTime,total,elapsed,sport,subSport,TimeInPwrZone,TimeInHRZone,TSS,type,
18,Session,1751386926,1 Jul 2025 16:59,22:52,22:52,5 Swimming,18 openWater,,,21 tss,stop,
MessageType,MessageName,timestamp,local time,NoSessions,Activity,event,type,
34,Activity,1751386926,1 Jul 2025 17:22,1,0,activity,stop,
Such a shame. So close to creating something new and great, but another half-finished piece of electronics on the heap. It really winds me up when companies do this!