Sony K77XR80 VESA pattern and wall-mount specs
Sony lists this model as VESA compatible but does not publish the hole pattern on its product page. It weighs 71.2 lb (32.3 kg) without its stand. Check the manual or measure the holes before buying a mount.
Mount checklist for the K77XR80
- Weight: 71.2 lb without the stand. Mounts are rated by maximum load; a mount rated 80 lb or more leaves no doubt, and full-motion arms should have more margin than fixed plates because the load sits further from the wall.
- Screws: use the screw length and any spacers the Sony manual specifies. Too long can damage the panel; too short strips the insert.
- Wall: fix the mount to studs or masonry with the hardware the mount maker supplies for that wall type.
What that means when you shop
Without a published pattern, the mount choice starts with measuring the TV (below). At 71.2 lb it is a heavy set: plan a two-person lift, fix the mount into at least two studs or into masonry, and pick a mount whose rating leaves clear margin.
Closest in weight among other brands' 77-inch TVs: Samsung OLED S90H (71.4 lb, 400 x 300 mm); Samsung OLED S95H (69.9 lb, 400 x 400 mm); LG OLED evo G6 (72.8 lb, 300 x 300 mm).
Sony's other 77-inch models here — BRAVIA 6 OLED (400 x 300 mm, 55.3 lb), BRAVIA XR A95L (Not published, 77.6 lb), BRAVIA XR8B (300 x 300 mm, 71.2 lb) — use a mix of patterns, so check the exact model before buying a mount.
Among Sony's 46 models here, this is one of the few without a published pattern. It is a 2024 model that Sony still lists; older lines are often discounted, and their mount specs don't change.
How to find the pattern on this TV yourself
- Lay the TV face down on a soft, flat surface, or measure it while it stands.
- Find the four threaded inserts on the back panel.
- Measure centre to centre between the two top holes in millimetres: that is the first number. Then top to bottom on one side: the second.
- Compare with standard patterns (100 x 100, 200 x 200, 200 x 300, 300 x 200, 400 x 200, 300 x 300, 400 x 300, 400 x 400…). A reading within a few millimetres of one of them is that pattern.
- Note the screw thread from the manual, or test-fit an M6 then M8 screw by hand — never force a screw.
The full walkthrough with photos-free diagrams is in the guide to finding your VESA pattern.
Other sizes in the Sony BRAVIA 8 line
Every size in this line that Sony lists uses Not published, so a mount for one fits the others if its weight rating covers the heaviest (71.2 lb on the 77").
| Model | Size | VESA (mm) | Weight |
|---|---|---|---|
| K55XR80 | 55" | Not published | 37.7 lb |
| K65XR80 | 65" | Not published | 49.2 lb |
| K77XR80 | 77" | Not published | 71.2 lb |
How it compares with other 77-inch TVs
There are 15 other 77-inch models on this site. At 71.2 lb it is heavier than the 70.6 lb median for the size — heavier than 7 of them.
Where to sit
A 77-inch 16:9 screen is 67.1 in wide and 37.8 in tall. It fills the SMPTE 30° view from 10 ft 5 in and THX's 40° cinema view from 7 ft 8 in. At this size 4K looks sharper than 1080p only from 10 ft or closer; beyond that, 20/20 eyes cannot tell the two apart. The 77-inch size page has the full table and every model at this size.
Pattern and weight: Sony product page for K77XR80, checked 2026-10-20; 2024 model. Viewing distances: geometry from the angles cited on the methodology page. Not affiliated with Sony.