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  3. VHF 115i vs RS20S

Garmin VHF 115i vs Simrad RS20S

What VHF 115i does better (0) and where RS20S wins (1) — every spec side by side.

Garmin VHF 115i
Garmin · 2025VHF 115i
0 advantages≈ £350
vs
Simrad RS20S
Simrad · 2025RS20S
5.4Score
1 advantage≈ £360
Higher score
3.2Ruggedness3.6
Dimensions

Size comparison

VHF 115iRS20S
85 × 170146167 × 16189
VHF 115iRS20SDifference
Height170 mm161 mm+9 mm
Width85 mm167 mm−82 mm
Depth146 mm89 mm+57 mm
Weight1,240 g1,180 g+60 g

Drawn to the same scale from the official dimensions (front and side).

Why is VHF 115i better than RS20S?

VHF 115i has no measurable advantages in this pair.

Why is RS20S better than VHF 115i?

  1. Weight1,240 g vs 1,180 g+5%
Specifications

Side by side

Simrad RS20SSimrad RS20S≈ £3605.4
Radio & range
Radio standardsAmateur VHF, Marine VHFAmateur VHF, Marine VHF
Frequency ranges156.050 - 163.275 MHz156.050 - 163.275 MHz
Transmit power25 W25 W
Squelchadjustableadjustable
Power & battery
Battery voltage12 V12 V
Power sourceMains / 12 V vehicleMains / 12 V vehicle
Design & durability
Weight1,240 g1,180 g
Width85 mm167 mm
Height170 mm161 mm
Depth146 mm89 mm
Protection ratingIPX7IPX7
Water protection (IPx)IPx7IPx7
DisplayBacklit displayBacklit display
ColoursBlackBlack
Features
Channel scanYesYes
Dual watchYesYes
Emergency / SOS alarmYesYes
GPSYesYes
PC programmableYes—
Connectivity
Headset / earpiece jack—Yes
Radios in the base pack—1
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