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  3. Reach RS4 Pro vs S950

Emlid Reach RS4 Pro vs Stonex S950

What Reach RS4 Pro does better (4) and where S950 wins (0) — every spec side by side.

Emlid Reach RS4 Pro
Emlid · 2025Reach RS4 Pro
9.3Score
4 advantages≈ $4,600
Higher score
vs
Stonex S950
Stonex · 2025S950
7.5Score
0 advantages
9.7Positioning7.0
5.9Connectivity & safety5.9
7.8Battery3.4
9.2Durability5.6

Why is Reach RS4 Pro better than S950?

  1. Battery life16 h vs 4 h4×
  2. RTK accuracy (horizontal)7 mm vs 8 mm+14%
  3. Water protection (IPx)IPx8 vs IPx7+14%
  4. Built-in UHF radioYes · S950: No

Why is S950 better than Reach RS4 Pro?

S950 has no measurable advantages in this pair.

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 bandsL1, L2, L5, E1, E5a, E6, B1, B2, B3—
Tracking channels—1,408
SBAS (WAAS / EGNOS)—Yes
RTK positioningYesYes
RTK accuracy (horizontal)7 mm8 mm
RTK accuracy (vertical)—15 mm
Tilt compensation (IMU)YesYes
Max. tilt angle—60°
Correction sourcesNTRIP (internet), UHF radio, LoRa radioNTRIP (internet), Cellular modem, L-band / PPP, SBAS
Built-in UHF radioYesNo
L-band / PPP corrections—Yes
Maps & navigation
Internal storage—62 GB
Connectivity & safety
Bluetooth—Yes
Cellular modem (4G / LTE)—Yes
USB-CYesYes
CameraYesYes
Battery & power
Battery life16 h4 h
Battery capacity—7,000 mAh
Build & durability
Protection ratingIP68IP67
Water protection (IPx)IPx8IPx7
Operating temperature (min)-40 °C-40 °C
Operating temperature (max)65 °C65 °C
Weight—810 g
Width—142 mm
Height—59 mm
Depth—142 mm
Housing materialMagnesium alloy—
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