
What reviewers say
HDTVTest and What Hi-Fi praised the 40-inch model's deep blacks, colour balance and detailed picture. Both liked its smart features. HDTVTest found limited viewing angles and a motion-processing quirk on its sample; What Hi-Fi preferred a cheaper Sony rival for value and found Samsung's pointer remote twitchy.
From hdtvtest.co.uk and whathifi.com
Specifications
Report a wrong or missing specDisplay
- Panel
- LED LCD
- Panel detail
- Flat LCD with active-shutter 3D; HDTVTest identifies direct LED backlighting on the 40-inch model. Samsung's 200 Clear Motion Rate is not native panel refresh.
- Resolution
- 1920 × 1080 (Full HD)
- HDR formats
- None
- Picture processing
- Samsung's UK specifications list Wide Colour Enhancer Plus and Film Mode, with no Micro Dimming or Precision Black local dimming.
- Motion handling
- Samsung's 200 Clear Motion Rate combines processing and lighting behaviour. Native panel Hz is unpublished in the checked maker tables.
- Viewing angle
- HDTVTest observed picture washout beyond about 45 degrees off-axis on its 40-inch sample.
Sizes
- Sizes
- 32, 40, 48, 55, 65, 75″
- Largest size
- 75″
Gaming
- HDMI ports
- 4 (0 HDMI 2.1 at 4K 120 Hz+)
- Variable refresh rate
- None
- Auto low latency mode
- No
- HDMI detail
- Four HDMI inputs with HDMI 1.4 3D and Audio Return Channel in Samsung's UK tables; component, shared composite, SCART and headphone connections also provided.
- Input lag
- 43 ms on the 40-inch sample using a Leo Bodnar tester (HDTVTest).
- Game features
- Manual Game Mode; no variable refresh or automatic low-latency switching.
Smart TV and sound
- Smart TV platform
- Samsung Smart TV
- Processor
- 3D HyperReal Engine; quad-core smart processor on the checked 40-, 55- and 65-inch UK tables
- Speakers
- 20 W
- eARC
- No
- Wi-Fi
- Built-in Wi-Fi
- Speaker detail
- Samsung lists two 10 W down-firing full-range speakers, without a woofer.
- Audio features
- Dolby MS10, DTS Studio Sound, DTS Premium Sound 5.1 and TV SoundConnect on the checked 40-, 48-, 55- and 65-inch tables.
- Voice assistants
- Original Samsung voice control and Voice Interaction; availability depends on the original services.
- Casting
- Screen Mirroring, Smart View and Wi-Fi Direct in Samsung's UK tables.
- TV tuners
- The 48-inch UK table explicitly lists DVB-T2/C. The other checked sizes list DVB-T/C without T2; HDTVTest and What Hi-Fi confirm Freeview HD on the 40-inch UK model.
- USB
- Three USB ports, media playback, recording and time shift.
- Ethernet
- Ethernet LAN.
- Optical audio out
- One optical digital audio output.
Design and power
- Size
- Width × height × depth without stands: 32-inch 732.3 × 430.7 × 62.9 mm; 40-inch 917.6 × 535.4 × 63.1 mm; 48-inch 1086.1 × 630.1 × 63.5 mm; 55-inch 1241.4 × 717.4 × 64 mm; 65-inch 1465.4 × 845.3 × 70.9 mm; 75-inch 1687 × 970 × 70.9 mm. Configuration weights exclude stands.
- Stand
- Swivelling four-legged Quad stand on the checked UK 40-, 48-, 55- and 65-inch models.
- Power use
- Typical use by size from Samsung's UK tables: 32-inch 43 W; 40-inch 50 W; 48-inch 59 W; 55-inch 71 W; 65-inch 97 W; 75-inch 124 W.
- In the box
- Two SSG-5100GB 3D glasses, standard and Smart Control remotes, IR extender, power cable and manual on the checked 40-, 48-, 55- and 65-inch tables.
Sizes
| Size | Model | Weight without stand |
|---|---|---|
| 32″ | UE32H6400AKXXU | 5.5 kg |
| 40″ | UE40H6400AKXXU | 8.2 kg |
| 48″ | UE48H6400AKXXU | 11.9 kg |
| 55″ | UE55H6400AKXXU | 16.6 kg |
| 65″ | UE65H6400AKXXU | 26.1 kg |
| 75″ | UE75H6400AKXXU | 33.1 kg |
Pros and cons
Pros
- Four HDMI inputs and three USB ports
- Built-in Wi-Fi, USB recording and HDMI ARC
- Two pairs of active 3D glasses included
Cons
- No 4K or HDR support
- No HDMI 2.1 or variable refresh support
- Original online apps may no longer be available
Closest rivals
Model | Sizes | Panel | Refresh | HDR | HDMI 2.1 | Software | Released |
|---|---|---|---|---|---|---|---|
| 50–75″ | Mini-LED | 144 Hz | Dolby Vision, HDR10+ | 2 of 4 | VIDAA | 2025 | |
| 49–75″ | LED LCD | 100 Hz | HDR10 | 0 of 4 | Android TV | 2017 | |
| 49–75″ | LED LCD | – | Dolby Vision | 0 of 4 | Android TV | 2018 |
Previous model: LED F6400.
Sources
- samsung.com/uk/support/model/UE40H6400AKXXU
- searchapi.samsung.com/v6/front/b2c/product/spec/detail
- searchapi.samsung.com/v6/front/b2c/product/spec/detail
- hdtvtest.co.uk/news/ue40h6400-201405023756
- whathifi.com/samsung/ue40h6400/review
Photo: hdtvtest.co.uk


