The wired connectivity story clearly favors the Samsung QN85LS03FWF. It offers 5 HDMI 2.1 ports and 3 USB ports compared to the TCL's 4 HDMI 2.1 and 2 USB ports. In a fully loaded home entertainment setup — gaming console, media streamer, soundbar via ARC, and a Blu-ray player all connected simultaneously — that extra HDMI port removes the need for a switch, and the additional USB port provides more flexibility for storage devices or service connections. Both TVs share HDMI 2.1 across all ports, which is the meaningful spec here since 2.1 supports 4K@120Hz and variable refresh rate passthrough.
Wireless connectivity is nearly identical, with both supporting the same Wi-Fi 4/5 dual-band combination and Miracast screen mirroring. The Bluetooth versions diverge only slightly — the TCL runs Bluetooth 5.4 versus the Samsung's 5.3 — a gap so marginal it will be imperceptible in day-to-day use with soundbars, headphones, or remotes. One genuinely practical difference, however, is the TCL's inclusion of a 3.5 mm headphone jack, which the Samsung lacks entirely. For users who want to watch late at night with wired headphones without routing through a separate audio device, this is a tangible convenience advantage for the TCL.
Overall, the Samsung edges ahead on connectivity for users building dense, multi-device setups — the extra HDMI and USB ports add real flexibility. The TCL counters with its headphone jack, a small but surprisingly useful feature for private listening scenarios. Neither TV offers Wi-Fi 6, which is a shared limitation worth noting if network congestion is a concern in a busy household.