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Samsung Q70/Q70T QLED TV Review

Tested using Methodology v1.5
Updated Nov 12, 2020 at 09:18 am
Samsung Q70/Q70T QLED Picture
7.5
Mixed Usage
Value for price beaten by
: TCL 6 Series/R635 2020 QLED
7.2
Movies
Value for price beaten by
: TCL 5 Series/S535 2020 QLED
7.7
TV Shows
Value for price beaten by
: Sony X800H
7.4
Sports
Value for price beaten by
: LG NANO90
8.3
Video Games
Value for price beaten by
: Vizio M7 Series Quantum 2020
7.1
HDR Movies
Value for price beaten by
: TCL 6 Series 2018
7.9
HDR Gaming
Value for price beaten by
: Vizio M7 Series Quantum 2020
7.8
PC Monitor
Value for price beaten by
: LG NANO90
Current deal: The Samsung Q70 75" has dropped by $200 on Amazon.com. See all Black Friday deals on TVs.
Type LED
Sub-Type
VA
Resolution 4k

The Samsung Q70T 2020 is a good 4k QLED TV that performs well for most content. Despite its lack of a local dimming feature, this TV can produce deep blacks due to its VA panel's high native contrast ratio. It has exceptionally low input lag, a 120Hz refresh rate, and FreeSync support to reduce screen tearing, making it a great choice for gaming. Its response time is just okay, but it has a Black Frame Insertion feature to help reduce motion blur. Unfortunately, its sub-par viewing angles cause the image to appear washed out when viewed from the side, which isn't ideal for wide seating arrangements. Also, while it gets bright enough to overcome glare, it isn't enough to deliver a true HDR experience. On the upside, it has impressive color accuracy out-of-the-box, and Samsung's Tizen OS is a user-friendly platform with tons of apps available.

Our Verdict

7.5 Mixed Usage

The Samsung Q70T is a good TV for most uses. It can deliver 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 has FreeSync support to reduce screen tearing. Unfortunately, it has poor viewing angles, which isn't ideal for wide seating arrangements.

Pros
  • Exceptional contrast ratio.
  • Decent reflection handling.
  • High refresh rate.
Cons
  • Poor viewing angles.
  • No local dimming.
7.2 Movies

The Samsung Q70T is decent 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. It upscales lower-resolution content well and can remove judder from all sources. Also, it doesn't stutter much with low frame rate content.

Pros
  • Exceptional contrast ratio.
  • Good gray uniformity.
Cons
  • No local dimming.
7.7 TV Shows

The Samsung Q70T is good for watching TV shows. It performs well in bright rooms due to its impressive peak brightness and decent reflection handling. It displays native 4k content without any issues and upscales lower resolution content like cable TV well. Unfortunately, its poor viewing angles cause the image to look washed out when viewed from the side, so it isn't ideal if you like walking around while watching.

Pros
  • Decent reflection handling.
  • Good gray uniformity.
Cons
  • Poor viewing angles.
7.4 Sports

The Samsung Q70T is decent for watching sports. Although its response time is only okay, it has a Black Frame Insertion feature to reduce motion blur. It provides good visibility in bright rooms, as it has decent reflection handling and gets bright enough to overcome glare. Unfortunately, its VA panel has poor viewing angles, making it less ideal for watching with a big group of people.

Pros
  • Decent reflection handling.
  • Good gray uniformity.
Cons
  • Poor viewing angles.
  • Response time is a bit slow.
8.3 Video Games

The Samsung Q70T is great for playing video games. It has only okay response time, but it has a Black Frame Insertion to improve motion clarity. It has a 120Hz refresh rate and low input lag, and it supports FreeSync variable refresh rate technology to minimize screen tearing. Its VA panel's high contrast ratio makes it a great choice for gaming in the dark, but it doesn't have a local dimming feature to further improve black level.

Pros
  • Exceptional contrast ratio.
  • FreeSync support.
  • Low input lag.
  • High refresh rate.
Cons
  • No local dimming.
  • Response time is a bit slow.
7.1 HDR Movies

The Samsung Q70T is decent for watching HDR movies. It has a VA panel with a high contrast ratio and excellent black uniformity, making it a great option for dark room viewing. It can display a wide color gamut; however, it doesn't get bright enough to bring out highlights, and it doesn't have a local dimming feature. On the upside, there's very little stutter with low frame rate content, and it can remove judder from all sources.

Pros
  • Exceptional contrast ratio.
  • Good gray uniformity.
Cons
  • No local dimming.
  • Doesn't get bright enough for HDR.
7.9 HDR Gaming

The Samsung Q70T is very good for gaming in HDR. It provides a great gaming experience thanks to its low input lag, 120Hz refresh rate, and FreeSync support. The response time is just okay, but it has a Black Frame Insertion feature to reduce motion blur. It can display a wide color gamut to produce a wide range of colors in HDR content; however, it doesn't get bright enough to make highlights stand out.

Pros
  • Exceptional contrast ratio.
  • FreeSync support.
  • Low input lag.
  • High refresh rate.
Cons
  • No local dimming.
  • Doesn't get bright enough for HDR.
  • Response time is a bit slow.
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 okay, and there's no risk of permanent burn-in with its VA panel. Its viewing angles are poor, though, so the edges of the screen can appear washed out if you sit up close.

Pros
  • Low input lag.
  • Decent reflection handling.
  • Supports most resolutions and chroma 4:4:4.
Cons
  • Poor viewing angles.
  • Response time is a bit slow.
  • 7.5 Mixed Usage
  • 7.2 Movies
  • 7.7 TV Shows
  • 7.4 Sports
  • 8.3 Video Games
  • 7.1 HDR Movies
  • 7.9 HDR Gaming
  • 7.8 PC Monitor
  1. Update 11/18/2020: We've retested the VRR, input lag, and supported resolutions with an HDMI 2.1 source and firmware version 1403.
  2. Update 11/12/2020: Updated review for accuracy and clarity.
  3. Update 9/30/2020: We've changed the status of the Auto-Calibration function from 'Untested' to 'Undetermined'.
  4. Update 8/19/2020: Update to HDMI Forum VRR support.
  5. Update 8/11/2020: Fixed an error with BFI frequency.
  6. Update 7/27/2020: Fixed an error with the BFI feature at 120Hz.
  7. Update 6/5/2020: We've retested the motion interpolation bug and 4k @ 120Hz using the latest firmware (1113).
  8. 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 mid-range TV from the 2020 QLED lineup. It sits between the Samsung Q60/Q60T QLED and the Samsung Q80/Q80T QLED. Its main competitors are the LG NANO90 and the Sony X900H.

Note: Samsung has shifted their lineup this year, so although this TV replaces the Samsung Q70/Q70R QLED by name in Samsung's lineup, it's more closely related to the Samsung Q60/Q60R QLED performance-wise.

Design
8.5
Design
Style
Curved No

The Samsung Q70T 2020 has an excellent design that's very similar to the Samsung Q70/Q70R QLED, as well as its smaller sibling, the Samsung Q60/Q60T QLED. It's minimalist, with very thin bezels and wide-set feet, and it comes with clips for cable management.

Design
Stand

The stand is simple and supports the TV well, but there's still a bit of wobble when nudged. The feet are wide-set and point outwards, so it requires a fairly large table to put it on if you don't plan on wall-mounting it. 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 has a horizontal dotted pattern etched into it. All the inputs are side-facing, making them easy to access even when the TV is wall-mounted. There are clips to attach the cables to the back of the stand for 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 much when wall-mounted.

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 blacks. Unfortunately, it doesn't have a local dimming feature to further improve it. Note that the contrast ratio can vary between individual units.

0
Picture Quality
Local Dimming
Local Dimming
No
Backlight
Edge

The Samsung 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 is fairly consistent when displaying different content. The 2% window is significantly darker due to the TV's CE (frame) dimming, which can't be disabled and may make dark scenes appear darker than they should.

We measured the SDR peak brightness after calibration in the 'Movie' Picture Mode, with Brightness set to maximum, Gamma set to '2.2', Contrast at its default value, and Contrast Enhancer set to 'Medium'.

If you don't mind losing image accuracy, you can get a brighter image by setting the Picture Mode to 'Vivid', with Brightness and Contrast set to max, and Contrast Enhancer set to 'Medium'. These settings allowed us to achieve 515 cd/m² in the 10% window.

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 the darker 2% window caused by the TV's CE dimming, the brightness doesn't vary much when displaying different content. It can deliver an okay HDR experience in a dark room, but it doesn't look significantly different from SDR content in brighter environments.

We measured the HDR peak brightness in the 'Movie HDR' Picture Mode, with Brightness and Contrast set to maximum.

If you want a brighter image in HDR and don't mind losing a bit of accuracy, set the Picture Mode to 'Movie HDR', with Brightness and Contrast set to max, and Contrast Enhancer set to 'Medium'. These settings allowed us to achieve 524 cd/m² in the 10% window.

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; however, this can vary between individual units. 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 °

Like most VA panels, the Samsung 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. Note that black uniformity can vary between units.

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 Samsung Q70T has great color accuracy; however, it can vary between units. There are minor inaccuracies with several colors and with shades of gray, although they may be difficult to notice. Gamma doesn't follow the 2.2 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 Samsung Q70T has no issues displaying native 4k content.

0
Picture Quality
8k Input

The Samsung Q70T can't display an 8k signal.

Picture Quality
Pixels

The Samsung Q70T uses a BGR sub-pixel structure. It doesn't affect image quality, but it can affect text clarity when using the TV as a PC monitor. You can read more about it here.

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 Samsung 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 QLED. It can produce dark colors well due to its high contrast ratio, but like most LED TVs, it doesn't display 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 Samsung Q70T shows no signs of temporary image retention; however, this can vary between individual units.

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 Samsung Q70T has an okay 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 Q80/Q80T QLED.

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

The Samsung 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 Samsung Q70T has an optional Black Frame Insertion feature that can help reduce motion blur. Unfortunately, the timing is quite off, causing visible image duplication.

With 120fps content, the backlight always flickers at 120Hz, and you can't change the LED Clear Motion settings. It flickers at 240Hz outside of 'PC' mode with 'Game' mode off. With '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.

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

The Samsung Q70T can display lower frame rate content without much stutter due to its 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 Samsung Q70T 2020 can remove judder from all sources. To use it, set Picture Clarity to 'Custom', but leave the Blur Reduction and Judder Reduction sliders to '0'.

9.4
Motion
Variable Refresh Rate
Native Refresh Rate
120 Hz
Variable Refresh Rate
Yes
HDMI Forum VRR
Unknown
FreeSync
Yes
G-SYNC Compatible
Yes
4k VRR Maximum
120 Hz
4k VRR Minimum
< 20 Hz
1080p VRR Maximum
120 Hz
1080p VRR Minimum
< 20 Hz
1440p VRR Maximum
120 Hz
1440p VRR Minimum
< 20 Hz
VRR Supported Connectors
HDMI

Update 11/18/2020: We've retested the VRR with an HDMI 2.1 source and firmware version 1403. It can now display 120fps at 4k with VRR enabled, and it also works with NVIDIA's G-SYNC.

Update 08/19/2020: We changed HDMI Forum VRR to 'Unknown' because we currently don't have an accurate way to test for HDMI Forum VRR compatibility. Once we do, we'll test for it and update the review.

The Samsung Q70T supports FreeSync to reduce screen tearing when gaming. There are no settings for it; it turns on automatically when it detects a computer or an Xbox One that has VRR enabled at the launch of a game.

Inputs
9.2
Inputs
Input Lag
1080p @ 60 Hz
10.4 ms
1080p @ 60 Hz Outside Game Mode
85.3 ms
1440p @ 60 Hz
9.2 ms
4k @ 60 Hz
9.1 ms
4k @ 60 Hz + 10 bit HDR
10.4 ms
4k @ 60 Hz @ 4:4:4
9.3 ms
4k @ 60 Hz Outside Game Mode
76.6 ms
4k @ 60 Hz With Interpolation
21.6 ms
8k @ 60 Hz
N/A
1080p @ 120 Hz
5.8 ms
1440p @ 120 Hz
6.0 ms
4k @ 120 Hz
5.5 ms
1080p with Variable Refresh Rate
6.6 ms
1440p with VRR
6.9 ms
4k with VRR
6.4 ms
8k with VRR
N/A
Auto Low Latency Mode (ALLM)
Yes

Update 11/18/2020: We've retested the input lag with an HDMI 2.1 source and firmware version 1403. We've added the 4k @ 120Hz input lag, which is measured in 'Game' mode with chroma 4:4:4 and 8-bit color coding. We've also updated the input lag for the other resolutions.

The Samsung Q70T has low input as long as 'Game' mode is enabled. It's slightly higher when VRR or Game Motion Plus are enabled, as well as when playing at 4k @ 60Hz + HDR. However, it shouldn't be noticeable for most casual gamers. To get the lowest input lag when using the TV as a PC monitor, set the icon for the input in use to 'PC'.

9.6
Inputs
Supported Resolutions