If your main goal is safety and staying connected on longer routes like the Via Alpina, I’d lean toward the InReach Mini 2. It’s lighter, has solid satellite messaging, and the battery life is surprisingly good for multi-day trips.
The GPSMap 67i is great if you really want detailed on-device mapping and navigation, but it’s definitely bulkier. For most trekking-focused users, the Mini 2 paired with your phone handles navigation just fine and keeps pack weight down.