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- Flex Mini vs i89
Bad Elf Flex Mini vs CHCNAV i89
What Flex Mini does better (2) and where i89 wins (2) — every spec side by side.
Why is Flex Mini better than i89?
- Weight143 g vs 750 g5.2×
- Battery life24 h vs 16 h+50%
Why is i89 better than Flex Mini?
- RTK accuracy (horizontal)10 mm vs 8 mm+25%
- Tracking channels135 vs 1,40810.4×
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, L5, E1, E5a, B1, B2 | L1, L2, L5, E1, E5a, E5b, E6, B1, B2, B3 |
| Tracking channels | 135 | 1,408 |
| SBAS (WAAS / EGNOS) | — | Yes |
| RTK positioning | Yes | Yes |
| RTK accuracy (horizontal) | 10 mm | 8 mm |
| RTK accuracy (vertical) | — | 15 mm |
| Tilt compensation (IMU) | — | Yes |
| Correction sources | — | NTRIP (internet), UHF radio, SBAS |
| Built-in UHF radio | — | Yes |
| Raw data logging (RINEX) | — | Yes |
| Maps & navigation | ||
| Internal storage | — | 8 GB |
| Connectivity & safety | ||
| Wi-Fi | — | Yes |
| Bluetooth | Yes | Yes |
| USB-C | Yes | Yes |
| Camera | — | Yes |
| Battery & power | ||
| Battery life | 24 h | 16 h |
| External power input | — | 5 V / 2 A |
| Build & durability | ||
| Protection rating | — | IP68 |
| Water protection (IPx) | — | IPx8 |
| MIL-STD-810 | — | Yes |
| Operating temperature (min) | — | -40 °C |
| Operating temperature (max) | — | 65 °C |
| Weight | 143 g | 750 g |
| Width | 45 mm | — |
| Height | 90 mm | — |
| Depth | 32 mm | — |
| Housing material | Polycarbonate | — |
