1Garmin · 2022GPSMAP 86sc 7.8 25% cheaper ≈ $450 Satellite systems supported 3 vs 2 Weight 272 g vs 230 g Compare with GPSMAP 66iCompare
2Garmin · 2023GPSMAP 67i 8.8 Same price ≈ $600 Battery life 165 h vs 35 hSatellite systems supported 5 vs 2Multi-band GNSS (L1 + L5/L2) Compare with GPSMAP 66iCompare
3Garmin · 2022GPSMAP 86sci 6.2 17% pricier ≈ $700 Weight 272 g vs 230 g Compare with GPSMAP 66iCompare
4Garmin · 2023GPSMAP 67 9.2 17% cheaper ≈ $500 Battery life 180 h vs 35 hSatellite systems supported 6 vs 2Multi-band GNSS (L1 + L5/L2) Compare with GPSMAP 66iCompare
5TwoNav · 2022Terra 7.6 33% cheaper ≈ $400 Screen size 3.7″ vs 3″Internal storage 32 GB vs 16 GBWeight 198 g vs 230 g Battery life 19 h vs 35 h Compare with GPSMAP 66iCompare
6Garmin · 2022GPSMAP 86i 5.2 Same price ≈ $600 Preloaded maps Weight 272 g vs 230 g Compare with GPSMAP 66iCompare
7Garmin · 2025Montana 710 8.2 8% pricier ≈ $650 Screen size 5″ vs 3″Satellite systems supported 3 vs 2Internal storage 32 GB vs 16 GB Battery life 24 h vs 35 hWeight 410 g vs 230 g Compare with GPSMAP 66iCompare
8Garmin · 2023Foretrex 901 Ballistic Edition 6.5 Same price ≈ $600 Battery life 100 h vs 35 hSatellite systems supported 3 vs 2Pixel density 182 ppi vs 155 ppi Screen size 2.2″ vs 3″ Compare with GPSMAP 66iCompare
9Garmin · 2022GPSMAP 86s 6.0 33% cheaper ≈ $400 Satellite systems supported 3 vs 2 Preloaded maps Weight 272 g vs 230 g Compare with GPSMAP 66iCompare
10Garmin · 2025Montana 710i 7.3 33% pricier ≈ $800 Screen size 5″ vs 3″Internal storage 32 GB vs 16 GBPixel density 187 ppi vs 155 ppi Battery life 24 h vs 35 hWeight 410 g vs 230 g Compare with GPSMAP 66iCompare