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Deal.ai › Compare

LG NU70 Nano 4K Smart TV vs TCL S5 75" 4K Google TV (75S551G)

The TCL S5 is the better pick for most people. It supports Dolby Vision and HDR10+, has three HDMI ports including eARC, and adds Game Accelerator 120 with VRR for consoles. The LG NU70 counters with LG's webOS 26, the α7 Gen9 processor and strong upscaling of older content, but it is a 60Hz set with only two HDMI ports and no Dolby Vision. Owners rate the TCL well at 4.6 out of 5; LG buyers commonly note the missing optical audio output.

  • Choose the LG NU70 if you watch a lot of cable, DVD or HD streaming and want LG's upscaling and webOS with its free channel library.
  • Choose the TCL S5 if you want Dolby Vision, more HDMI inputs and smoother gaming from a console.

Prices

  • LG NU70 Nano 4K Smart TV: $399.99 at Best Buy (last seen Nov 13)
  • TCL S5 75" 4K Google TV (75S551G): $479.99 at Wagner Appliance Sales (last seen Nov 13)
  • Difference: the LG NU70 Nano 4K Smart TV is $80.00 cheaper than the TCL S5 75" 4K Google TV (75S551G) at the latest prices (Nov 13)
LG
LG 75-Inch Class Nano 4K UHD AI NU70 Smart TV (2026)

LG NU70 Nano 4K Smart TV

LG 75-Inch Class Nano 4K UHD AI NU70 Smart TV (2026)

4.3(6 ratings)
$399.99at Best BuyChecked 16 h ago
See all prices and details
Visit Best Buy

Store links may earn us a commission. Price via Klarna.

Pros
  • LG α7 Gen9 processor with strong 4K upscaling
  • webOS 26 with 400+ free channels and a large on-demand library
  • FILMMAKER MODE and HDR10 Pro
  • Works with Google Assistant and Alexa
Cons
  • Only two HDMI ports
  • 60Hz refresh rate with no VRR for gaming
  • No Dolby Vision or HDR10+
  • No optical audio output
TCL
TCL 75” Class S5 (75S551G) 4K UHD HDR LED Smart TV with Google TV (NEW 2024)

TCL S5 75" 4K Google TV (75S551G)

TCL 75” Class S5 (75S551G) 4K UHD HDR LED Smart TV with Google TV (NEW 2024)

4.6(259 ratings)
$479.99at Wagner Appliance SalesChecked 19 h ago
See all prices and details
Visit Wagner Appliance Sales
Pros
  • Dolby Vision and HDR10+ support
  • Three HDMI inputs including eARC
  • 120Hz VRR and ALLM for consoles
  • Dolby Atmos and DTS Virtual:X audio
  • Slim metal bezel-less design
Cons
  • Google TV interface differs from LG's webOS
  • Wi-Fi 5 only
  • Upscaling less refined than LG's on low-quality sources

What separates them

LG NU70 Nano 4K Smart TVTCL S5 75" 4K Google TV (75S551G)
HDR formatsHDR10 Pro onlyDolby Vision, HDR10+, HDR10 and HLG
HDMI inputs23, one with eARC
Gaming features60Hz panel, no VRR listedGame Accelerator 120, up to 120Hz VRR, ALLM
Smart platformwebOS 26 with LG Channels, 400+ free channelsGoogle TV with Google Assistant
Upscalingα7 AI Processor 4K Gen9 with AI Super UpscalingTCL AIPQ processor with deep-learning AI
Audio outputNo optical port; HDMI ARC/eARC or Bluetooth onlyHDMI eARC plus Dolby Atmos and DTS Virtual:X
DesignStandard flat LED, 2.8 in deepEdge-to-edge FullView 360 metal bezel-less design
Owner feedbackBuyers flag the missing optical audio port4.6 out of 5 from 259 ratings

Price history

$479.99$399.99
Nov 9Nov 14
  • LG NU70 Nano 4K Smart TV: lowest $399.99 on Nov 13 at Best Buy; $399.99 on Nov 14.
  • TCL S5 75" 4K Google TV (75S551G): lowest $479.99 on Nov 10 at Best Buy; $479.99 on Nov 13.

Prices at every store

LG NU70 Nano 4K Smart TV

  • Best BuyNew

    In stock

    $399.99Free shippingChecked 16 h ago
    Visit Best Buy
  • Best BuyNew

    In stock

    $399.99Free shippingChecked 19 h ago
    Visit Best Buy
  • LGNew

    In stock

    $399.99+ $4.00 shippingChecked 19 h ago
    Visit LG
  • Abt ElectronicsNew

    In stock

    $399.99+ $249.00 shippingChecked 16 h ago
    Visit Abt Electronics

Store links may earn us a commission. Some prices via Klarna.

All 12 stores and price history →

TCL S5 75" 4K Google TV (75S551G)

  • Wagner Appliance SalesNew

    In stock

    $479.99Free shippingChecked 19 h ago
    Visit Wagner Appliance Sales
  • Best BuyNew

    In stock

    $479.99Free shippingChecked 19 h ago
    Visit Best Buy
  • Best BuyNew

    In stock

    $479.99Free shippingChecked Nov 10
    Visit Best Buy
  • Daniel's Home CenterNew

    In stock

    $479.99+ $149.99 shippingChecked Nov 10
    Visit Daniel's Home Center

Store links may earn us a commission. Some prices via Klarna.

All 6 stores and price history →

Specs compared

SpecLG NU70 Nano 4K Smart TVTCL S5 75" 4K Google TV (75S551G)
screen_size75"75 in
colorBlackBlack
Resolution4K4K UHD
Refresh Rate60Hz60 Hz
HDTV Format4K4K UHD
Screen FormFlatFlat
Display TypeLEDLED
Width65.7 in wide65.6
Depth2.8 in deep13.7
HDMI Ports2 HDMI ports3
Screen Resolution3840x2160 (4K Ultra HD)—
Release Year2026—
Show all 40 specsShow fewer specs
SpecLG NU70 Nano 4K Smart TVTCL S5 75" 4K Google TV (75S551G)
Operating SystemwebOS—
Height (in)37.9—
Width (in)65.7—
Depth (in)2.8—
Screen Size (in)75—
High DefinitionYes—
Assistant SupportGoogle Assistant, Amazon Alexa—
HDRYes—
ConnectivityBluetooth, Wi-Fi, RF, USB, HDMI, Ethernet—
Supported Streaming Services

What reviewers say

LG NU70 Nano 4K Smart TV

Owners of LG's Nano Cell LCD sets praise the color and the easy webOS interface, and most find the picture bright enough for daytime viewing. Critics note that dark scenes look washed out and that the 60Hz panel is not ideal for fast games.

What people mention
  • Picture qualityMixedReviewers like the color and upscaling but say dark scenes lack depth.
  • BrightnessMixedOwners find it fine for daytime but weak for bright HDR highlights.
  • GamingCriticisedThe 60Hz panel and lack of VRR are called limiting for fast games.
  • SoundCriticisedBuilt-in speakers are described as thin, so most add a soundbar.

TCL S5 75" 4K Google TV (75S551G)

  • 4.6 / 5259 ratings

Owners of TCL's S-series generally rate the picture and Google TV interface well for the price, and the large size is the main draw. Complaints center on motion handling, black-level uniformity and modest brightness in bright rooms.

What people mention
  • Picture qualityPraisedOwners say 4K and Dolby Vision content looks sharp and colorful for the price.
  • MotionCriticisedFast action and sports show blur because the panel is native 60Hz.
  • Black levelsMixed

Questions and answers

Which is better for gaming, the LG NU70 or the TCL S5?
The TCL S5. It has Game Accelerator 120 with up to 120Hz VRR and auto game mode, while the LG is a 60Hz set with no VRR listed.
Which has better HDR?
The TCL S5 supports Dolby Vision, HDR10+ and HLG. The LG NU70 offers HDR10 Pro only, so Dolby Vision discs and streams look better on the TCL.
Is the LG worth stepping up to over the TCL?
Only if you value LG's upscaling of older content and the webOS channel library. The TCL wins on ports, HDR formats and gaming features.
Which is better for a bright living room?
Both use LED backlights. The TCL's high-brightness backlight and Dolby Vision help with HDR highlights; the LG relies on HDR10 Pro tone mapping.
Can I connect a soundbar to both?
Yes. The TCL has HDMI eARC; the LG has HDMI ARC/eARC but no optical port, so use HDMI or Bluetooth.
Which lasts longer?
Neither maker publishes a lifespan figure. Both are LED sets; the TCL's metal bezel-less build and the LG's simpler two-port design are the main physical differences.

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More comparisons

  • Samsung 75” Class U8000H Series Crystal UHD 4K UHD Samsung Vision AI Companion Smart Tizen TV 2026 vs LG 75-Inch Class Nano 4K UHD AI NU70 Smart TV (2026)
  • TCL 75" Class QM5K Series 4K UHD HDR QD-Mini LED Smart TV vs LG 75-Inch Class Nano 4K UHD AI NU70 Smart TV (2026)
  • Samsung 75” Class U8000H Series Crystal UHD 4K UHD Samsung Vision AI Companion Smart Tizen TV 2026 vs TCL 75” Class S5 (75S551G) 4K UHD HDR LED Smart TV with Google TV (NEW 2024)
  • TCL 75" Class QM5K Series 4K UHD HDR QD-Mini LED Smart TV vs TCL 75” Class S5 (75S551G) 4K UHD HDR LED Smart TV with Google TV (NEW 2024)

Buying guides that pick them

  • Best 75-inch 4K TVs under $700
  • Best 65- to 75-inch 4K Google TVs
Netflix, Prime Video, YouTube, HBO, Disney+
—
Network Functionality—Smart TV, Google Assistant
Supported Resolutions—4K
Smart TV—Yes
Internet Streaming Services—Google TV
Network Connectivity—Wi-Fi
Video Interface—HDMI
PC Interface—USB, HDMI
CEC Enabled—HDMI ARC
Backlight Technology—LED
Display Highlights—HDR
Max Resolution V-Sync—120 Hz VRR
Display Aspect Ratio—16:9
Image Contrast Ratio—High
Viewing Angle—178° (horizontal)
Viewing Angle (Vertical)—178°
Menu Language—Spanish, English, French
Color Temperature—Yes (Adjustable: Warm, Normal, Cool)
Dimensions—957.6 mm (Height without stand)
Dark scenes look decent but show some unevenness and blooming at the edges.
  • Google TVPraisedThe interface is quick to learn and carries most major streaming apps.