Garmin Echomap UHD2 63sv
#3 in Up to 7 inFull review
A compact do everything chartplotter for kayaks and small boats that may add LiveScope later.
Amazon $849.99$849.99
The Garmin Echomap UHD2 63sv and the Humminbird Helix 7 MEGA SI GPS G4 are evenly matched, rated 3.5 and 3.4. The Garmin Echomap UHD2 63sv leads on warranty. The Humminbird Helix 7 MEGA SI GPS G4 wins on value and screen. The Humminbird Helix 7 MEGA SI GPS G4 costs $200.01 less ($649.98 vs $849.99).
Humminbird Helix 7 MEGA SI GPS G4
#5 in Up to 7 inFull review
For anglers who want the clearest imaging in a 7 in unit and will not add live sonar or network gear.
Amazon $649.98$649.98
Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Garmin Echomap UHD2 63sv for warranty (2-year warranty vs 1-year warranty).
- Choose the Humminbird Helix 7 MEGA SI GPS G4 for value ($92.85 per inch of screen ($649.98, 7 in) vs $137.10 per inch of screen ($849.99, 6.2 in)) and screen (1024 x 600, 170 pixels per inch vs 800 x 480, 150 pixels per inch).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every up to 7 in fish finder; a clear win is highlighted. How we rank explains each one.
| Factor weight | Garmin Echomap UHD2 63sv | Humminbird Helix 7 MEGA SI GPS G4 |
|---|---|---|
| Overall rating | 3.5/5 | 3.4/5 |
| Value 30% | 6 $137.10 per inch of screen ($849.99, 6.2 in) | 30 $92.85 per inch of screen ($649.98, 7 in) |
| Sonar 25% | 100 CHIRP, down imaging, side imaging | 100 CHIRP, down imaging, side imaging |
| GPS and maps 15% | 100 GPS with preloaded maps | 100 GPS with preloaded maps |
| Screen 10% | 42 800 x 480, 150 pixels per inch | 58 1024 x 600, 170 pixels per inch |
| Warranty 20% | 50 2-year warranty | 0 1-year warranty |
Specifications
| Garmin Echomap UHD2 63sv | Humminbird Helix 7 MEGA SI GPS G4 | |
|---|---|---|
| Display | ||
| Screen | 6.2 in | 7 in |
| Resolution | 800 x 480 | 1024 x 600 |
| Pixels per inch | 150 | 170 |
| Touchscreen | Yes | No |
| Sonar | ||
| CHIRP | Yes | Yes |
| Down imaging | Yes | Yes |
| Side imaging | Yes | Yes |
| Live sonar ready | Yes | No |
| Maximum depth | - | 1,200 ft |
| Transducer | GT54UHD-TM | XNT 9 HW MSI 150 T |
| Navigation and build | ||
| GPS | Yes | Yes |
| Maps | Preloaded | Preloaded |
| Phone pairing | Yes | No |
| Networking | Yes | No |
| Warranty | 2 years | 1 year |
| Released | 2023-01-11 | 2021-09 |