The TCL 98P755 uses an LED-backlit LCD panel measuring 98 inches across, resolving images at 3840x2160 pixels with a pixel density of 45 ppi. The display renders 1,070 million colors at 10-bit depth, with a typical brightness of 450 nits and a 6000:1 contrast ratio. A 144Hz refresh rate supports smoother motion reproduction, though no adaptive synchronization technology is included. HDR coverage spans all four major formats — HDR10, HDR10+, Dolby Vision, and HLG — and both horizontal and vertical viewing angles reach 178 degrees, keeping image consistency across a wide range of seating positions. An anti-reflection coating and an ambient light sensor are also present to help manage picture quality under varying room lighting conditions.
Wired connections are handled by three HDMI 2.1 ports, a single RJ45 ethernet jack, and two USB ports, with a 3.5 mm headset jack also available for direct audio output. Wireless options include Wi-Fi 4 (802.11n) and Wi-Fi 5 (802.11ac) alongside Bluetooth 5 and Miracast support for wireless display mirroring. The TV does not include an external memory slot, a VGA connector, or a DVI connector. For over-the-air and satellite reception, the built-in tuner covers a broad range of DVB standards — DVB-T, DVB-T2, DVB-C, DVB-S, and DVB-S2 — making it compatible with a wide variety of broadcast environments.
The built-in audio system consists of stereo speakers paired with a dedicated subwoofer, delivering a total output of 2x20W for fuller low-end presence alongside the main channels. Decoding support is extensive, covering Dolby Digital, Dolby Digital Plus, Dolby Audio, and Dolby Atmos, as well as DTS:X and DTS-HD High Resolution Audio, though Dolby Virtual and SRS TheaterSound HD are not supported. A Digital Out connection is available for external audio routing, and both HDMI ARC and HDMI eARC are included to simplify integration with soundbars or AV receivers.
The TCL 98P755 carries substantial physical dimensions to match its screen size, measuring 2177 mm wide, 1247 mm tall, and 68 mm thick, with an overall volume of 184,600.892 cm³ and a weight of 56,500 g. VESA mount compatibility is included, allowing the set to be wall-mounted using a suitable bracket. The operating temperature range runs from 5 °C at the lower end to a maximum of 35 °C, reflecting the environmental conditions under which the TV is rated to function normally.
The TCL 98P755 runs a built-in smart TV platform with Chromecast and AirPlay onboard for wireless streaming from both Android and Apple devices, while voice control is covered by both Google Assistant and Amazon Alexa — though Siri and Apple HomeKit are not supported. Smartphone remote control is available, and the TV responds to voice commands directly, though the physical remote is not rechargeable. Content can be recorded to an external drive via USB, and everyday utility features include a search browser, a sleep timer, and a child lock. Standby power consumption is rated at 0.5W, and the set comes with a 2-year warranty.