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- Compare
- i73+ vs AsteRx SB3 Pro+
CHCNAV i73+ vs Septentrio AsteRx SB3 Pro+
What i73+ does better (2) and where AsteRx SB3 Pro+ wins (4) — every spec side by side.
vs
2.9Positioning6.6
4.9Maps & navigation8.8
6.5Durability8.4
Dimensions
Size comparison
i73+AsteRx SB3 Pro+
| i73+ | AsteRx SB3 Pro+ | Difference | |
|---|---|---|---|
| Height | 85 mm | 118 mm | −33 mm |
| Width | 119 mm | 102 mm | +17 mm |
| Weight | 730 g | 497 g | +233 g |
Drawn to the same scale from the official dimensions (front and side).
Why is i73+ better than AsteRx SB3 Pro+?
- Operating temperature (min)-40 °C vs -30 °C+-25%
- Tracking channels624 vs 544+15%
Why is AsteRx SB3 Pro+ better than i73+?
- Water protection (IPx)IPx7 vs IPx8+14%
- Weight730 g vs 497 g+47%
- Internal storage8 GB vs 16 GB2×
- Satellite systems supported5 vs 6+20%
Specifications
Side by side
| Satellite positioning | ||
| Satellite systems | GPS, GLONASS, Galileo, BeiDou, QZSS | GPS, GLONASS, Galileo, BeiDou, QZSS, NavIC (IRNSS) |
| Satellite systems supported | 5 | 6 |
| Tracking channels | 624 | 544 |
| SBAS (WAAS / EGNOS) | — | Yes |
| RTK positioning | Yes | — |
| Tilt compensation (IMU) | Yes | — |
| Dual-antenna heading | — | Yes |
| Correction sources | NTRIP (internet), UHF radio | 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 | 16 GB |
| Connectivity & safety | ||
| Bluetooth | Yes | — |
| Battery & power | ||
| Battery life | 18 h | — |
| Battery capacity | 6,800 mAh | — |
| Power source | Removable rechargeable pack | — |
| External power input | — | 5-36 VDC |
| Build & durability | ||
| Protection rating | IP67 | IP68 |
| Water protection (IPx) | IPx7 | IPx8 |
| MIL-STD-810 | — | Yes |
| Drop resistance | 2 m | — |
| Operating temperature (min) | -40 °C | -30 °C |
| Operating temperature (max) | 65 °C | 65 °C |
| Weight | 730 g | 497 g |
| Width | 119 mm | 102 mm |
| Height | 85 mm | 118 mm |
| Depth | 119 mm | — |
| Housing material | — | Ruggedized enclosure IP68 |
