To reduce IPTV data usage, switch to lower-bitrate streams (SD or optimized HD), use codecs like H.265/HEVC, reduce buffer size, or enable “data saver” mode in compatible apps. Ethernet connections allow stable streaming even at lower bitrates. Avoid 4K streams unless necessary as they consume large amounts of data. Glanfy recommends providers that offer efficient HEVC and adaptive-bitrate options.