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  3. A300 vs Reach RS4 Pro

ComNav A300 vs Emlid Reach RS4 Pro

What A300 does better (1) and where Reach RS4 Pro wins (1) — every spec side by side.

ComNav A300
ComNav · 2023A300
8.0Score
1 advantage
vs
Emlid Reach RS4 Pro
Emlid · 2025Reach RS4 Pro
9.3Score
1 advantage≈ $4,600
Higher score
8.4Positioning9.7
5.9Connectivity & safety5.9
7.8Durability9.2

Why is A300 better than Reach RS4 Pro?

  1. Operating temperature (max)75 °C vs 65 °C+15%

Why is Reach RS4 Pro better than A300?

  1. RTK accuracy (horizontal)8 mm vs 7 mm+14%
Specifications

Side by side

Emlid Reach RS4 ProEmlid Reach RS4 Pro≈ $4,6009.3
Satellite positioning
Satellite systemsGPS, GLONASS, Galileo, BeiDou, QZSS, NavIC (IRNSS)GPS, GLONASS, Galileo, BeiDou, QZSS, NavIC (IRNSS)
Satellite systems supported66
Multi-band GNSS (L1 + L5/L2)—Yes
Frequency bands—L1, L2, L5, E1, E5a, E6, B1, B2, B3
Tracking channels965—
SBAS (WAAS / EGNOS)Yes—
RTK positioningYesYes
RTK accuracy (horizontal)8 mm7 mm
Static accuracy (horizontal)2.5 mm—
Tilt compensation (IMU)—Yes
Correction sourcesNTRIP (internet), UHF radio, Cellular modem, SBASNTRIP (internet), UHF radio, LoRa radio
Built-in UHF radioYesYes
Connectivity & safety
BluetoothYes—
Cellular modem (4G / LTE)Yes—
USB-CYesYes
Camera—Yes
Battery & power
Battery life—16 h
External power input6-36—
Build & durability
Protection ratingIP68IP68
Water protection (IPx)IPx8IPx8
Drop resistance2 m—
Operating temperature (min)-40 °C-40 °C
Operating temperature (max)75 °C65 °C
Weight2,000 g—
Width250 mm—
Height126 mm—
Depth250 mm—
Housing materialFRP cover & aluminum alloy baseMagnesium alloy
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