The TCL 98QM751G uses a 97.5″ QLED Mini-LED LCD panel with a native 3840 x 2160 resolution at 45 ppi, rendering over 1.07 billion colors at 10-bit depth and a typical brightness of 2400 nits. The 120Hz refresh rate is accompanied by AMD FreeSync, FreeSync Premium, and FreeSync Premium Pro adaptive sync support. HDR compatibility covers HDR10, HDR10+, Dolby Vision, and HLG, providing broad format coverage across streaming and broadcast content. Horizontal and vertical viewing angles both reach 178 degrees, and the panel is further equipped with an anti-reflection coating and an ambient light sensor to maintain consistent image quality under varying lighting conditions.
The TCL 98QM751G is fitted with four HDMI 2.1 ports and three USB ports for wired source connections, plus a single RJ45 ethernet port for a stable network link. Wireless options include Wi-Fi 4 and Wi-Fi 5, along with built-in Bluetooth and Miracast for screen mirroring; Wi-Fi 6 is not supported. A 3.5mm headset jack rounds out the audio output options, while an external memory slot, VGA connector, and DVI connector are all absent from this model.
The TCL 98QM751G covers a wide range of audio formats, with Dolby-side support including Dolby Atmos, Dolby Audio, Dolby Digital, and Dolby Digital Plus, while Dolby Virtual and SRS TheaterSound HD are not featured. DTS decoding extends to both DTS:X and DTS-HD High Resolution audio. The built-in speaker configuration consists of stereo speakers and a subwoofer, and Digital Out is available for routing audio to external equipment. Both HDMI ARC and HDMI eARC are supported, enabling flexible connection to compatible soundbars and AV receivers.
The TCL 98QM751G measures 2179.3 mm wide, 1242.1 mm tall, and 71.1 mm thick, with a total volume of approximately 192,461.2 cm³ and a weight of around 61 kg. VESA mount support is included, allowing the set to be installed on a compatible wall bracket. The operating temperature range runs from 5 °C at the low end to a maximum of 35 °C, defining the environmental conditions within which the TV is designed to operate reliably.
The TCL 98QM751G runs a built-in smart TV platform with an integrated web browser, Chromecast, and AirPlay for flexible content streaming and casting. Voice control is handled through Google Assistant and Amazon Alexa, though Siri and Apple HomeKit are not supported. The TV can be operated via a smartphone as a remote, and voice commands are available directly. Additional utility features include USB recording, a sleep timer, and a child lock, while standby power consumption is rated at 0.5W. The remote control is not rechargeable, and the set is covered by a one-year warranty.