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- M900 vs iRTK4
ComNav M900 vs Hi-Target iRTK4
What M900 does better (3) and where iRTK4 wins (0) — every spec side by side.
Why is M900 better than iRTK4?
- Tracking channels1,226 vs 866+42%
- Operating temperature (min)-40 °C vs -30 °C+-25%
- Operating temperature (max)75 °C vs 70 °C+7%
Why is iRTK4 better than M900?
iRTK4 has no measurable advantages in this pair.
Specifications
Side by side
| Satellite positioning | ||
| Satellite systems | GPS, GLONASS, Galileo, BeiDou, QZSS | GPS, GLONASS, Galileo, BeiDou, QZSS |
| Satellite systems supported | 5 | 5 |
| Multi-band GNSS (L1 + L5/L2) | Yes | Yes |
| Frequency bands | L1, L2, E1, E5b, B1, B2 | L1, L2, L5, E1, E5a, E5b, B1, B2, B3, L-band |
| Tracking channels | 1,226 | 866 |
| SBAS (WAAS / EGNOS) | Yes | — |
| RTK positioning | Yes | Yes |
| RTK accuracy (horizontal) | 8 mm | — |
| Static accuracy (horizontal) | 2.5 mm | — |
| Tilt compensation (IMU) | — | Yes |
| Dual-antenna heading | Yes | — |
| Correction sources | NTRIP (internet), UHF radio, Cellular modem, L-band / PPP, SBAS | — |
| Built-in UHF radio | Yes | — |
| L-band / PPP corrections | Yes | — |
| Raw data logging (RINEX) | Yes | — |
| Maps & navigation | ||
| Internal storage | 8 GB | — |
| Connectivity & safety | ||
| Wi-Fi | Yes | — |
| Bluetooth | Yes | Yes |
| Cellular modem (4G / LTE) | Yes | — |
| Battery & power | ||
| Battery life | — | 10 h |
| Battery capacity | — | 6,800 mAh |
| External power input | 5-27 VDC | 6-28V DC external power input (5-pin port) with over-discharge protection |
| Build & durability | ||
| Protection rating | IP68 | IP68 |
| Water protection (IPx) | IPx8 | IPx8 |
| Drop resistance | 1 m | — |
| Operating temperature (min) | -40 °C | -30 °C |
| Operating temperature (max) | 75 °C | 70 °C |
| Weight | 1,000 g | — |
| Width | 171 mm | — |
| Height | 56 mm | — |
| Depth | 183 mm | — |
| Housing material | Magnesium-aluminium | Magnesium Alloy |
