At this screen size tier, physical footprint and weight are serious practical considerations — and the two sets diverge meaningfully here. The Hisense 100U75QG is larger in every dimension, as expected given its 2-inch screen advantage, but the gap in thickness is the most striking: 81.3mm versus the TCL 98QM8K's 54.1mm. That 27mm difference is substantial — the TCL is roughly one-third slimmer, which has a direct impact on how flush it sits against a wall and how visually imposing the chassis looks in a room.
Weight compounds the story further. The Hisense tips the scales at 63,503g (~63.5 kg) compared to the TCL's 56,001g (~56 kg) — a difference of roughly 7.5 kg. For sets this heavy, that gap is genuinely meaningful during installation: both will require at least two people and ideally professional mounting, but the TCL demands less of the wall mount hardware and puts less stress on wall studs. The TCL's total volume of ~145,713 cm³ versus the Hisense's ~232,563 cm³ further underscores how much more compactly engineered the TCL chassis is relative to its screen size. Both support VESA mounting and share identical operating temperature ranges, so those factors are a wash.
Edge: TCL 98QM8K. Despite offering a comparable screen area, the TCL is significantly thinner, lighter, and lower in volume — advantages that translate directly into easier installation, better wall-mount compatibility, and a cleaner aesthetic profile in the room.