Bottom line: Which one is better?
When we compare Samsung Q7 Vs Q9 in this review, Samsung Q9FN is better because it has much better local dimming performance, a higher contrast ratio and black uniformity that improve picture quality in a dark room.
Stand; the two TVs have stands.
Wall mount; Samsung Q7FN has VESA 200×200 whereas Samsung Q9FN has 400×400.
Borders; Samsung Q7FN has 0.35” (0.9cm) whereas Samsung Q9FN has 0.43” (1.1cm)
Max thickness; Samsung Q7FN is 2.05” (5.2cm) whereas Samsung Q9FN is 1.61” (4.1cm)
Max temperature; Samsung Q7FN has 99oF (37oC) whereas Samsung Q9FN has 97oF (36oC)
Average temperature; Samsung Q7FN has 91oF (33oC) whereas Samsung Q9FN has 84oF (29oC)
Native contrast; Samsung Q7FN has 5607:1 whereas Samsung Q9FN has 6055:1
Local dimming; both TVs have local dimming.
Backlight; Samsung Q7FN has Edge whereas Samsung Q9FN has Full-Array.
SDR real scene peak brightness; Samsung Q7FN has 682cd/m2 whereas Samsung Q9FN has 667cd/m2
HDR real scene peak brightness; Samsung Q7FN has 717cd/m2 whereas Samsung Q9FN has 908cd/m2
Gray uniformity; Samsung Q7FN has 7.7 whereas Samsung Q9FN has 6.7
50% Std. Dev; Samsung Q7FN has 3.217% whereas Samsung Q9FN has 3.553%.
50% DSE; Samsung Q7FN has 0.165% whereas Samsung Q9FN has 0.236%
Viewing angle; Samsung Q7FN has 5.4, the same as Samsung Q9FN.
Black uniformity; Samsung Q7FN has 8.9 whereas Samsung Q9FN has 9.6
Native Std. Dev; Samsung Q7FN has 0.567% while Samsung Q9FN has 0.537%
Total reflections; Samsung Q7FN has 1.5% while Samsung Q9FN has 1.4%
Pre calibration; Samsung Q7FN has 7.7 whereas Samsung Q9FN has 7.4
White balance dE; Samsung Q7FN has 2.80 while Samsung Q9FN has 2.88
Color dE; Samsung Q7FN has 2.80 whereas Samsung Q9FN has 3.39
Gamma; Samsung Q7FN has 2.24 whereas Samsung Q9FN has 2.19
Post calibration; both TVs have 9.4
White balance dE; Samsung Q7FN has 0.27 whereas Samsung Q9FN has 0.15
Color dE; Samsung Q7FN has 1.66 whereas Samsung Q9FN has 1.77
Gamma; Samsung Q7FN has 2.20, the same as Samsung Q9FN.
Color gamut; Samsung Q7FN has 9.0 whereas Samsung Q9FN has 8.6
100% response time; Samsung Q7FN has 12.6ms whereas Samsung Q9FN has 15.5ms.
Flicker-free; both TVs are not flicker-free.
Black Frame Insertion (BFI); both TVs have optional BFI.
Motion interpolation; both TVs have motion interpolation 30fps and 60fps.
24p Judder; the two TVs are judder-free.
Variable refresh rate; both TVs have FreeSync.
Native refresh rate; both TVs have 120Hz.
Input lag; Samsung Q7FN has 9.4 whereas Samsung Q9FN has 9.1
Supported resolutions; both TVs have 8.8
Total inputs; each TV has 4 HDMI, 3 USB, 1 Digital optical audio out, 1 Tuner (cable/Ant0 and 1 Ethernet.
Inputs specifications; the two TVs supports HDR10, HDR10+, HLG, HDMI 2.0 Full Band5width, CEC, HDCP 2.2 and Wi-Fi.
Audio pass-through; each TV supports ARC, 5.1 Dolby Digital and 5.1 DTS.
Low-frequency extension; Samsung Q7FN has 71.27Hz whereas Samsung Q9FN has 113.14Hz.
Max; Samsung Q7FN has 85.odB SPL Samsung Q9FN has 88.4dB SPL.
Weighted THD @ Max; Samsung Q7FN has 0.519 while Samsung Q9FN has 0.892
IMD @ Max; Samsung Q7FN has 1.25% whereas Samsung Q9FN has 1.18%
Smart OS; both TVs operate on Tizen version 2018.
Interface; both TVs are easy to use but are not smooth.
Ads; both TVs have ads.
Apps and features; the two TVs have apps and features.
Remote; both TVs have small remotes.
TV controls; the two TVs have TV controls.
When we compare Samsung Q9 Vs Q7 in this review, Samsung Q9FN is better as it has better local dimming performance, a higher contrast ratio and black uniformity that improve picture quality in a dark room.$ 1699.95