Bottom line: Which one is better?
When we compare LG B7A Vs Sony X900X in this review, LG B7A is better because it uses an OLED panel that gives perfect performance in dark room as well as wide watching angles.
Stand; the two TVs have stands
Wall mount; LG B7A has VESA 300×200 while Sony X900F has VESA 300×300
Borders; LG B7A has 0.43” (1.1cm) while Sony X900F has 0.34” (0.9cm)
Max thickness; LG B7A is 1.97” (5.0cm) whereas Sony X900F is 2.76” (7.0cm)
Max temperature; LG B7A has 93oF (34oC) whereas Sony X900F has 91oF (33oC)
Average temperature; LG B7A has 90oF (32oC) while Sony X900F has 87oF (30oC)
Native contrast; LG B7A has Inf:1 whereas Sony X900F has 5089:1
Local dimming; Sony X900F has local dimming.
SDR real scene peak brightness; LG B7A has 384cd/m2 whereas Sony X900F has 578cd/m2
HDR real scene peak brightness; LG B7A has 670cd/m2 whereas Sony X900F has 894cd/m2
Gray uniformity; LG B7A has 8.2 whereas Sony X900F has 7.5
50% Std. Dev; LG B7A has 1.232% whereas Sony X900F has 4.335%
50% DSE; LG B7A has 0.155% whereas Sony X900F has 0.165%
Viewing angle; LG B7A has 8.2 while Sony X900F has 5.2
Black uniformity; LG B7A has 10 whereas Sony X900F has 7.7
Native Std. Dev; LG B7A has 0.208% whereas Sony X900F has 0.923%
Total reflections; LG B7A has 1.5% whereas Sony X900F has 3.5%
Pre-calibration; LG B7A has 7.1 whereas Sony X900F has 8.9
White balance dE; LG B7A has 3.55 whereas Sony X900F has 1.66
Color dE; LG B7A has 3.32 while Sony X900F has 1.60
Gamma; LG B7A has 2.24 whereas Sony X900F has 2.20
Picture mode; LG B7A has Expert (Dark Room) while Sony X900F has custom.
Post calibration; LG B7A has 9.6 whereas Sony X900F has 9.5
White balance dE; LG B7A has 0.15 whereas Sony X900F has 0.13
Color dE; LG B7A has 1.07 while Sony X900F has 1.33
Gamma; LG B7A has 2.20 while Sony X900F 2.19
Color gamut; LG B7A has 8.6 whereas Sony X900F has 8.0
100% response time; LG B7A has 1.0ms whereas Sony X900F has 10.2ms
Flicker-free; the two TVs are not flicker-free.
Black Frame Insertion (BFI); Sony X900F has optional BFI
Motion interpolation; the two TVs have motion interpolation 30fps and 60fps.
24p Judder; the two TVs are judder-free.
Native refresh rate; each TV has 120Hz
Variable refresh rate; the two TVs don’t have.
Input lag; LG B7A has 9.1 whereas Sony X900F has 8.4
Supported resolutions; LG B7A has 9.1 whereas Sony X900F has 9.6
Total inputs; each TV has 4 HDMI, 3 USB, 1 Digital optical audio out, 1 composite in, 1 Tuner (Cable/Ant) and 1 Ethernet. Sony X900F has 1 Analog Audio out 3.5mm and 1 IR in.
Inputs specifications; the two TVs support HDR10, HLG, Dolby Vision, HDMI 2.0 full bandwidth, CEC, HDCP 2.2, USB 3.0 and Wi-Fi. Sony X900F has Variable Analog Audio.
Audio pass-through; each TV supports ARC, 5.1 Dolby Digital and 5.1 DTS.
Low-frequency extension; LG B7A has 100.79Hz whereas Sony X900F has 95.14Hz.
Max; LG B7A has 84.7dB SPL whereas Sony X900F has 90.0dB SPL
Weighted THD @ Max; LG B7A has 0.938 whereas Sony X900F has 9.787
IMD @ Max; LG B7A has 21.47% whereas Sony X900F has 72.21%
Smart OS; LG B7A operates on WebOS version 3.7 while Sony X900F on Android TV version 7.0
Interface; LG B7A is easy to use with average smoothness while Sony X900F has an average ease of use and not smooth.
Ads; they all have ads.
Apps and features; both TVs have apps and features.
Remote; they both have large remotes
TV controls; they both have TV controls.
When we compare the two TVs, LG B7A is better because it uses an OLED panel that gives perfect performance in dark room as well as wide watching angles.$ 1199.99