Kt Giga Wifi Wave 2 «HD – 2K»

KT Gig WiFi Wave 2: Is This the Ultimate Router for South Korea’s Blazing Internet?

• Device: Samsung Galaxy S23 Ultra (Wi-Fi 6 compatible, but backwards compatible).
• KT Plan: 1 Gbps Fiber.
• 5 GHz Speed: 890 Mbps down / 940 Mbps up.
• Latency: 2 ms.

• Wireless: Expect solid real‑world AC1200–AC1900‑class throughput on 5 GHz for single‑client speeds; MU‑MIMO helps when multiple compatible clients are active but gains depend on client support.
• Coverage: Good for typical 2–3 bedroom apartments; range in larger homes may need an extender or mesh node.
• Wired: Gigabit Ethernet ports for WAN/LAN deliver full-speed wired connections; suitable for IPTV or wired NAS use.

D. Weak 2.4GHz Performance

The 2.4GHz band (used by smart bulbs, older devices, and for long-range connections) only achieves ~80–150 Mbps and is prone to interference from microwaves, Bluetooth, and neighbors.