Several meaningful connectivity upgrades distinguish the G86 from the G57 in this group. Most notably, the G86 adds Wi-Fi 6 (802.11ax) support on top of the Wi-Fi 4 and 5 standards that both phones share. Wi-Fi 6 delivers higher throughput, better performance in congested environments with many connected devices, and improved power efficiency — a tangible benefit for users on modern routers in busy households or offices. The G57's ceiling of Wi-Fi 5 is not obsolete, but it leaves potential speed and stability gains on the table. Relatedly, the G86's cellular upload speed reaches 3270 Mbits/s — more than double the G57's 1500 Mbits/s — which benefits users who regularly upload large files, stream live video, or work with cloud storage on mobile connections.
Bluetooth also advances on the G86, which uses version 5.3 versus the G57's 5.1. While the practical differences between these incremental Bluetooth versions are subtle in everyday use, 5.3 brings refined connection reliability and improved energy efficiency — useful for those who keep multiple Bluetooth peripherals paired simultaneously. Perhaps more tangibly, the G86 is the only one of the two with an external memory slot, allowing users to expand storage beyond the built-in 256GB via a microSD card — a meaningful flexibility advantage for photographers, travelers, or anyone who accumulates large amounts of local content.
The remaining connectivity specs — 5G, NFC, USB Type-C 2.0, SIM configuration, sensors, and GPS — are identical across both devices, so neither holds an edge there. But taken together, Wi-Fi 6, faster upload speeds, a newer Bluetooth version, and expandable storage give the Moto G86 a clear and well-rounded advantage in this group.