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- Emlid
- Reach RS4 Pro
EmlidGNSS / RTK receiver
Emlid Reach RS4 Pro
Emlid Reach RS4 Pro is a GNSS / RTK receiver released in September 2025. Key specs: RTK accuracy (horizontal) 7 mm, tilt compensation (IMU), satellite systems supported 6, multi-band GNSS (L1 + L5/L2).
9.3Score
Positioning9.7
Connectivity & safety5.9
Battery7.8
Durability9.2
price range$4,100–5,100
- Released
- September 2025
- Brand
Emlid- Popularity
- #68 of 301
7 mmRTK accuracy (horizontal)
YesTilt compensation (IMU)
6Satellite systems supported
YesMulti-band GNSS (L1 + L5/L2)
16 hBattery life
IPx8Water protection (IPx)
Spec guide
How it ranks among GNSS / RTK receivers
RTK accuracy (horizontal) · 7 mmTop 6%
Satellite systems supported · 6Top 25%
Battery life · 16 hTop 38%
Water protection (IPx) · IPx8Top 15%
Compared with every model of this kind in the catalog.
compared with other GNSS / RTK receivers
Why is Reach RS4 Pro a good choice?
RTK accuracy (horizontal): 7 mmbetter than 94% of GNSS / RTK receivers
Water protection (IPx): IPx8better than 85% of GNSS / RTK receivers
Battery life: 16 hbetter than 72% of GNSS / RTK receivers
Satellite systems supported: 6better than 70% of GNSS / RTK receivers
Specifications
Full specifications
Satellite positioning
- Satellite systems supported
- 6
- Multi-band GNSS (L1 + L5/L2)
- Yes
- Frequency bands
- L1, L2, L5, E1, E5a, E6, B1, B2, B3
- RTK positioning
- Yes
- RTK accuracy (horizontal)
- 7 mm
- Tilt compensation (IMU)
- Yes
- Built-in UHF radio
- Yes
Connectivity & safety
- USB-C
- Yes
- Camera
- Yes
Battery & power
- Battery life
- 16 h
Build & durability
- Protection rating
- IP68
- Water protection (IPx)
- IPx8
- Operating temperature (min)
- -40 °C
- Operating temperature (max)
- 65 °C
- Housing material
- Magnesium alloy
Specs are collected from manufacturers and open databases and normalised to one format; check details with the seller before you buy.
In collections
GPS devices: Multi-band GNSS (L1 + L5/L2) + tilt compensation (IMU)49GPS devices: RTK accuracy (horizontal) up to 8 mm + tilt compensation (IMU)49GPS devices — Satellite systems: NavIC (IRNSS) + tilt compensation (IMU)53GPS devices — Multi-band GNSS (L1 + L5/L2) + Correction sources: UHF radio53GPS devices — Satellite systems: NavIC (IRNSS) + multi-band GNSS (L1 + L5/L2)56GPS devices — Satellite systems: NavIC (IRNSS) + Correction sources: UHF radio57GPS devices — Satellite systems: NavIC (IRNSS) + RTK accuracy (horizontal) up to 8 mm58GPS devices — Tilt compensation (IMU) + Correction sources: UHF radio58
