Samsung Q70/Q70T QLED TV Review

Tested using Methodology v1.5
Reviewed May 11, 2020 at 08:42 am
Samsung Q70/Q70T QLED Picture
7.5
Mixed Usage
Value for price beaten by
: Hisense H9G
7.2
Movies
7.7
TV Shows
7.4
Sports
8.2
Video Games
7.1
HDR Movies
7.9
HDR Gaming
7.8
PC Monitor
Type LED
Sub-Type
VA
Resolution 4k

The Samsung Q70T QLED is a good 4k TV that performs well in most content. Despite its lack of a local dimming feature, this TV is able to produce deep and inky blacks due to its VA panel's high native contrast ratio. In addition to its 120Hz refresh rate and decent response time, gamers should be delighted to hear that it has an exceptionally low input lag and FreeSync support. Unfortunately, its sub-par viewing angles aren't ideal for large rooms or wide seating arrangements, and its mediocre HDR peak brightness isn't able to bring out bright highlights in HDR content. On the upside, it has an impressive color accuracy, and Samsung's Tizen OS is a great platform that's user-friendly.

Our Verdict

7.5 Mixed Usage

The Samsung Q70T is a very good TV for most uses. It can deliver a good picture quality whether you're watching low-resolution cable TV or a high-definition HDR movie. Its VA panel is well-suited for dark rooms and it has an impressive peak brightness that can fight glare easily. Its input lag is incredibly low, providing a responsive gaming and desktop experience, and it comes with FreeSync support to reduce screen tearing. Unfortunately, it has poor viewing angles, which is less ideal if you have a wide seating arrangement.

Pros
  • Outstanding contrast ratio.
  • Great out-of-the-box color accuracy.
  • FreeSync support.
Cons
  • Poor viewing angles.
  • No local dimming.
7.2 Movies

The Samsung Q70T is a decent TV for watching movies. It has remarkable dark room performance due to its high contrast ratio and outstanding black uniformity, but it doesn't have a local dimming feature. Lower-resolution content is displayed without any issues and the TV can remove judder from all sources.

7.7 TV Shows

The Samsung Q70T is a good TV for watching TV shows. It performs well in bright rooms due to its impressive peak brightness and decent reflection handling, and it has a high contrast ratio that makes dark room viewing truly enjoyable. Lower resolution content like cable TV are upscaled with ease, but if you tend to walk around when watching, its poor viewing angles cause the image to look washed out when viewed from the side.

7.4 Sports

The Samsung Q70T is a decent TV for watching sports. It has a great response time to deliver a clear picture with minimal motion blur, and its good uniformity means that there's almost no visible dirty screen effect that can be distracting. Visibility is not an issue in bright rooms, although its poor viewing angles make it less suitable for watching a game with a large group of friends.

8.2 Video Games

The Samsung Q70T is a great TV for playing video games. It has a decent response time and its low input lag makes every move feel extremely responsive. Its VA panel's high contrast ratio makes it a great choice for those who like to game in the dark, and it comes with FreeSync support, delivering a nearly tear-free gaming experience.

7.1 HDR Movies

The Samsung Q70T is an okay TV for watching HDR movies. It has a VA panel with a high contrast ratio and excellent black uniformity, despite its lack of a local dimming feature. It can display a wide color gamut, but its HDR peak brightness is rather mediocre and isn't able to bring out bright highlights. Motion handling is decent and it can interpolate lower frame rate content for fans of the 'Soap opera effect'.

7.9 HDR Gaming

The Samsung Q70T is a good TV for gaming in HDR. On top of its decently fast response time, low input lag, and FreeSync support, this TV can deliver a good HDR gaming experience. Its VA panel performs remarkably well in dark rooms, but sadly, it doesn't have a local dimming feature.

7.8 PC Monitor

The Samsung Q70T is a good TV for use as a PC monitor. It has a low input lag for a responsive experience and it can display proper chroma 4:4:4, which is important for text clarity. Response time is decent and there are no risks of permanent burn-in with its VA panel. Viewing angles are poor, though, so the edges of the screen can appear washed out if you tend to sit up close.

  • 7.5 Mixed Usage
  • 7.2 Movies
  • 7.7 TV Shows
  • 7.4 Sports
  • 8.2 Video Games
  • 7.1 HDR Movies
  • 7.9 HDR Gaming
  • 7.8 PC Monitor
  1. Update 9/30/2020: We've changed the status of the Auto-Calibration function from 'Untested' to 'Undetermined'.
  2. Update 8/19/2020: Update to HDMI Forum VRR support.
  3. Update 8/11/2020: Fixed an error with BFI frequency.
  4. Update 7/27/2020: Fixed an error with the BFI feature at 120Hz.
  5. Update 6/5/2020: We've retested the motion interpolation bug and 4k @ 120Hz using the latest firmware (1113).
  6. Update 5/21/2020: Converted to Test Bench 1.5.

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Video

Test Results

perceptual testing image
Market Context
Market Context
Market Context

The Samsung Q70T is a TV from the 2020 QLED lineup and it sits at the lower end of the high-end models, which includes the Samsung Q80T and the Samsung Q90T, the latter being the 4k flagship model. Its main competitors are likely to be the LG NANO90 and Sony's X900H.

Note: Samsung has shifted their lineup this year, so although this TV replaces the Q70R by name in Samsung's lineup, in terms of performance, it is more closely related to the Q60R.

Design
8.5
Design
Style
Curved No

The Samsung Q70T has an excellent design that's very similar to the Samsung Q70/Q70R QLED, as well as its smaller sibling, the Samsung Q60T. It's minimalist, with very thin bezels and wide-set feet, and it comes with clips that serve as basic cable management.

Design
Stand

The stand is simple and it supports the TV well, but there's still a bit of wobble if you nudge it. The feet are wide-set and they point outwards, so it requires a fairly large table. They no longer need to be screwed in, as you only need to slide them into place, making the setup process much easier. Unfortunately, they're not reversible.

Footprint of the 55" stand: 40.3" x 9.5".

Design
Back
Wall Mount VESA 200x200

The back of the TV is fully plastic and it has a horizontal dotted pattern that gives it texture. All the inputs are side-facing, making them easy to access even when the TV is wall-mounted, and there are clips to attach the cables to the back of the stand, serving as basic cable management.

Design
Borders
Borders 0.35" (0.9 cm)

The borders are thin and aren't distracting.

Design
Thickness
Max Thickness 2.40" (6.1 cm)

The TV is thin and shouldn't stick out if you choose to wall-mount it.

7.0
Design
Build Quality

Build quality is decent. Despite its all-plastic construction, there are no obvious gaps and you shouldn't have issues with it. However, the TV still wobbles a bit.

Picture Quality
9.4
Picture Quality
Contrast
Native Contrast
7144 : 1
Contrast with local dimming
N/A

The Samsung Q70T has an outstanding contrast ratio, capable of producing deep and inky blacks. Unfortunately, it doesn't have a local dimming feature to further improve it.

0
Picture Quality
Local Dimming
Local Dimming
No
Backlight
Edge

The Q70T doesn't have a local dimming feature. The video above is provided for reference only.

8.0
Picture Quality
SDR Peak Brightness
SDR Real Scene Peak Brightness
450 cd/m²
SDR Peak 2% Window
251 cd/m²
SDR Peak 10% Window
500 cd/m²
SDR Peak 25% Window
499 cd/m²
SDR Peak 50% Window
498 cd/m²
SDR Peak 100% Window
498 cd/m²
SDR Sustained 2% Window
248 cd/m²
SDR Sustained 10% Window
498 cd/m²
SDR Sustained 25% Window
497 cd/m²
SDR Sustained 50% Window
497 cd/m²
SDR Sustained 100% Window
497 cd/m²
SDR ABL
0.045

Impressive SDR peak brightness. The TV can get bright enough to fight glare in most rooms and it's fairly consistent when displaying different content. The 2% window is significantly darker; this is due to the TV's CE (frame) dimming, which can't be disabled and may make dark scenes appear darker than they should.

Our measurements were done after calibration, using the 'Movie' Picture Mode. Brightness was set to maximum and gamma was set to 2.2. Contrast was left at its default setting and Contrast Enhancer was set to 'Medium'.

6.4
Picture Quality
HDR Peak Brightness
HDR Real Scene Peak Brightness
455 cd/m²
HDR Peak 2% Window
252 cd/m²
HDR Peak 10% Window
488 cd/m²
HDR Peak 25% Window
488 cd/m²
HDR Peak 50% Window
488 cd/m²
HDR Peak 100% Window
488 cd/m²
HDR Sustained 2% Window
249 cd/m²
HDR Sustained 10% Window
486 cd/m²
HDR Sustained 25% Window
486 cd/m²
HDR Sustained 50% Window
486 cd/m²
HDR Sustained 100% Window
487 cd/m²
HDR ABL
0.043

Mediocre HDR peak brightness. Again, except for darker 2% window caused by the TV's CE dimming, the brightness doesn't vary much when displaying different content. This is bright enough to deliver an okay HDR experience in dark rooms, but it won't look significantly different from SDR content in brighter environments

We measured the peak brightness using the 'Movie HDR' Picture Mode, with the backlight and contrast set to maximum.

If you want a TV that can get brighter to deliver a better HDR experience, take a look at the Vizio P Series Quantum 2020.

7.6
Picture Quality
Gray Uniformity
50% Std. Dev.
3.378 %
50% DSE
0.168 %
5% Std. Dev.
1.148 %
5% DSE
0.105 %

Gray uniformity is good. It's slightly darker around the sides of the screen, but thankfully, there's very little dirty screen effect and uniformity is much better in darker scenes.

5.3
Picture Quality
Viewing Angle
Color Washout
23 °
Color Shift
26 °
Brightness Loss
32 °
Black Level Raise
20 °
Gamma Shift
15 °

Unfortunately, like most VA panels, the Q70T has poor viewing angles. Images look washed out from the side, making it less ideal for large rooms and wide seating arrangements.

9.0
Picture Quality
Black Uniformity
Native Std. Dev.
0.633 %
Std. Dev. w/ L.D.
N/A

Black uniformity is excellent. There's a bit of backlight bleed around the top corners of the screen, as well as some minor clouding and blooming around the test cross; however, the rest of the screen is very uniform.

7.4
Picture Quality
Reflections
Screen Finish
Semi-gloss
Total Reflections
5.2 %
Indirect Reflections
0.8 %
Calculated Direct Reflections
4.4 %

Reflection handling is very decent. It's similar to the Samsung Q70/Q70R QLED, except that it's slightly better at reducing the intensity of reflected light. Visibility should be fine in most rooms, but it may be an issue in rooms with a lot of windows.

8.0
Picture Quality
Pre Calibration
White Balance dE
2.81
Color dE
2.14
Gamma
2.07
Color Temperature
6176 K
Picture Mode
Movie
Color Temp Setting
Warm 2
Gamma Setting
2.2

Out of the box, the Q70T has great color accuracy. There are minor inaccuracies with several colors and with shades of gray, although they may be difficult to notice. Gamma doesn't follow the target at all, resulting in most scenes appearing brighter than they should. The color temperature is on the warm side, giving the image a slight reddish tint.

9.2
Picture Quality
Post Calibration
White Balance dE
0.41
Color dE
1.83
Gamma
2.21
Color Temperature
6511 K
White Balance Calibration
20 point
Color Calibration
Yes
Auto-Calibration Function
Undetermined

Update 09/30/2020: We've changed the status of the Auto-Calibration function from 'Untested' to 'Undetermined', as the Q70T isn't yet listed as being compatible with CalMAN.

After calibration, color accuracy is excellent. White balance and gamma are near perfect, and the color temperature is very close to our target of 6500K. However, there are still some inaccuracies with a few colors. This is because when we tried to change any color settings, it made it significantly worse and introduced clipping. That said, most of these inaccuracies are very difficult to notice without the aid of a colorimeter.

You can see our recommended settings here.

8.0
Picture Quality
480p Input

480p content such as DVDs is upscaled without any obvious artifacts.

8.0
Picture Quality
720p Input

There are no issues with the upscaling of 720p content.

9.0
Picture Quality
1080p Input

1080p content is handled well, with no obvious upscaling artifacts.

10
Picture Quality
4k Input

The Q70T has no issues displaying native 4k content.

0
Picture Quality
8k Input

The Q70T can't display an 8k signal.

Picture Quality
Pixels
7.8
Picture Quality
Color Gamut
Wide Color Gamut
Yes
DCI P3 xy
85.04 %
DCI P3 uv
92.19 %
Rec 2020 xy
62.65 %
Rec 2020 uv
70.91 %

The Q70T has a good HDR color gamut. It has excellent coverage of the widely used DCI P3 color space but its coverage of the wider Rec 2020 is mediocre. The 'Movie' EOTF follows the target curve fairly well until the roll-off, although 'Game' mode appears darker in general, as you can see here.

If you find HDR too dim, you can make it brighter by setting Brightness and Contrast to maximum, set ST.2084 to maximum, and set Contrast Enhancer to medium.

You can also check out our recommended settings here.

6.9
Picture Quality
Color Volume
Normalized DCI P3 Coverage ITP
78.6 %
10,000 cd/m² DCI P3 Coverage ITP
29.3 %
Normalized Rec 2020 Coverage ITP
60.1 %
10,000 cd/m² Rec 2020 Coverage ITP
22.4 %

Decent color volume, but not as good as the Samsung Q70/Q70R. It can produce dark colors well due to its high contrast ratio, but like most LED TVs, it can't produce very bright blues well.

8.1
Picture Quality
Gradient
Color Depth
10 Bit
Red (Std. Dev.)
0.109 dE
Green (Std. Dev.)
0.127 dE
Blue (Std. Dev.)
0.092 dE
Gray (Std. Dev.)
0.099 dE

Impressive gradient performance. There's some very minor banding in darker shades, although it shouldn't be noticeable in most content. If banding bothers you, enabling Noise Reduction can help a bit, but at the cost of some fine details in some scenes.

10
Picture Quality
Temporary Image Retention
IR after 0 min recovery
0.00 %
IR after 2 min recovery
0.00 %
IR after 4 min recovery
0.00 %
IR after 6 min recovery
0.00 %
IR after 8 min recovery
0.00 %
IR after 10 min recovery
0.00 %

Like most VA panels, the Q70T shows no signs of temporary image retention.

10
Picture Quality
Permanent Burn-In Risk
Permanent Burn-In Risk
No

We don't expect VA panels to experience burn-in, as the VA panel in our long-term test appears immune.

Motion
6.9
Motion
Response Time
80% Response Time
7.0 ms
100% Response Time
15.0 ms

The Q70T has a decent response time. There's a bit of blur trail behind fast-moving objects, and the 0-20% transition is a bit slow, resulting in slightly more motion blur in darker scenes.

If you want a TV with better response time, check out the Samsung Q80T QLED.

8.7
Motion
Flicker-Free
Flicker-Free
No
PWM Dimming Frequency
600 Hz

The Q70T uses pulse-width modulation (PWM) to dim the backlight. It always flickers at 600Hz, except when its black frame insertion feature is enabled, reducing the flicker to 120Hz. Additionally, it flickers at 240Hz when in PC mode (without 'Game' mode) and when in 'Game' mode with Game Motion Plus enabled. Lastly, when using 'Game' mode on a PC, the backlight flickers at 600Hz.

10
Motion
Black Frame Insertion (BFI)
Optional BFI
Yes
Min Flicker for 60 fps
60 Hz
60 Hz for 60 fps
Yes
120 Hz for 120 fps
Yes
Min Flicker for 60 fps in Game Mode
60 Hz

Update 08/11/2020: A previous version of the review stated the BFI had a minimum flicker of 120Hz for 60fps content in 'Game' mode. It flickers at 60Hz in 'Game' mode with Game Motion Plus and LED Clear Motion enabled. The review has been updated.

Update 07/27/2020: We retested the flicker frequency with Game mode on or off.

The Q70T has an optional black frame insertion that can help reduce motion blur. Unfortunately, the timing is quite off, causing visible duplication of the image.

With 120fps content, the backlight always flickers at 120Hz and you can't change the LED Clear Motion settings. However, it flickers at 240Hz outside of 'PC' mode with 'Game' mode off, but when you turn 'Game' mode on, it flickers at 120Hz, and goes down to 60Hz with LED Clear Motion and Game Motion Plus enabled. Enabling LED Clear Motion outside of 'Game' mode also reduces the flicker to 60Hz.

Motion
Motion Interpolation
Motion Interpolation (30 fps)
Yes
Motion Interpolation (60 fps)
Yes

Update 06/04/2020: We've retested the Blur Reduction bug with the new firmware update (1113), and we can confirm that the TV is able to interpolate 30fps and 60fps content up to 120fps.

This TV can interpolate lower frame rate content up to 120Hz. To enable it, you have to set Picture Clarity to 'On', set Judder Reduction to '10' for 30fps, and Blur Reduction to '10' for 60fps content.

With motion interpolation enabled, there's noticeable duplication in fast scenes, and when displaying more intense scenes, it introduces a good amount of artifacts.

We noticed that the Blur Reduction setting doesn't seem to do anything when displaying 30fps content. There's a new firmware available that can potentially fix this, we will provide an update once we've tested it.

8.0
Motion
Stutter
Frame Hold Time @ 24 fps
24.6 ms
Frame Hold Time @ 60 fps
2.3 ms

The Q70T is able to display lower frame rate content without much stutter, due to its slightly slower response time. It can still happen at times and if it bothers you, enabling Picture Clarity can help.

10
Motion
24p Judder
Judder-Free 24p
Yes
Judder-Free 24p via 60p
Yes
Judder-Free 24p via 60i
Yes
Judder-Free 24p via Native Apps
Yes

The Q70T can remove judder from all sources. To use it, set Picture Clarity to 'Custom', and set the Blur and Judder sliders to '0'.

8.2
Motion
Variable Refresh Rate
Native Refresh Rate
120 Hz
Variable Refresh Rate
Yes
HDMI Forum VRR
Unknown
FreeSync
Yes
G-SYNC Compatible
No
4k VRR Maximum
60 Hz
4k VRR Minimum
48 Hz
1080p VRR Maximum
120 Hz
1080p VRR Minimum
< 20 Hz
1440p VRR Maximum
120 Hz
1440p VRR Minimum
< 20 Hz
VRR Supported Connectors