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LG C1 OLED 4K Smart TV vs Sony A90K 42 inch Ultra HD 4K Smart OLED TV (XR42A90K)

The LG C1 is a versatile 65-inch powerhouse ideal for home theaters and competitive gaming. The Sony A90K is a premium 42-inch compact display designed for desktop use or smaller rooms where color accuracy and PS5 integration are priorities. While the LG offers a larger cinematic experience, the Sony provides superior motion processing and a build quality suited for close-up viewing.

  • Choose the LG C1 if you want a large-scale cinematic display with four full-bandwidth HDMI 2.1 ports for multi-platform gaming.
  • Choose the Sony A90K if you need a high-end compact OLED that doubles as a professional-grade monitor or a dedicated PS5 display.

Prices

  • LG C1 OLED 4K Smart TV: $1,299.00 at Amazon (last seen Nov 9)
  • Sony A90K 42 inch Ultra HD 4K Smart OLED TV (XR42A90K): $910.00 at Baillio's (checked today)
  • Difference: the Sony A90K 42 inch Ultra HD 4K Smart OLED TV (XR42A90K) is $389.00 cheaper than the LG C1 OLED 4K Smart TV at the latest prices (Nov 9 and Nov 12)
LG
LG C1 OLED 4K Smart TV

LG C1 OLED 4K Smart TV

$1,299.00at AmazonChecked Nov 9
See all prices and details
Visit Amazon

Store links may earn us a commission. As an Amazon Associate, Deal.ai earns from qualifying purchases.

Pros
  • Large 65-inch screen for immersive viewing
  • Four HDMI 2.1 ports for multiple 4K/120Hz devices
  • Excellent G-Sync compatibility for PC gamers
  • Slim panel design with premium aesthetic
Cons
  • Too large for standard desktop use
  • Older webOS version compared to newest models
  • Aggressive auto-brightness limiting in bright rooms
Sony
Sony A90K 42 inch Ultra HD 4K Smart OLED TV (XR42A90K)

Sony A90K 42 inch Ultra HD 4K Smart OLED TV (XR42A90K)

4.7(192 ratings)
$910.00at Baillio'sChecked 1 h ago
See all prices and details
Visit Baillio's
Pros
  • Perfect size for high-end desktop gaming
  • Cognitive Processor XR provides industry-leading upscaling
  • Exclusive features for PlayStation 5 users
  • Acoustic Surface Audio+ uses the screen as a speaker
Cons
  • Smaller screen limits home theater impact
  • Only two ports support full HDMI 2.1 bandwidth
  • Thicker chassis compared to larger OLED models

What separates them

LG C1 OLED 4K Smart TVSony A90K 42 inch Ultra HD 4K Smart OLED TV (XR42A90K)
Screen Size65 inches for living room immersion42 inches for desks or small bedrooms
Image Processingα9 Gen4 AI focuses on clarity and HDR tone mappingCognitive Processor XR mimics human focal points
Gaming FeaturesG-Sync and FreeSync support with 4 HDMI 2.1 portsAuto HDR Tone Mapping exclusive to PlayStation 5
Smart PlatformwebOS 6.0 with a pointer-based Magic RemoteGoogle TV with deep app integration and Chromecast
Input LagLow latency optimized for PC and consolesUltra-low 8.5ms lag specifically tuned for gaming
Physical ProfileWide footprint requiring a large media consoleCompact adjustable stand for desktop placement

Price history

$1,132.77$910.00
Nov 9Nov 12
  • LG C1 OLED 4K Smart TV: lowest $1,029.00 on Nov 11 at Amazon.
  • Sony A90K 42 inch Ultra HD 4K Smart OLED TV (XR42A90K): lowest $910.00 on Nov 12 at Baillio's.

Prices at every store

LG C1 OLED 4K Smart TV

  • eBayPre-owned

    Availability unknown

    $135.00Checked Nov 9
    Visit eBay
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $1,299.00Free shippingChecked Nov 9
    Visit Amazon

Also available at

  • Newegg.comCheck price at Newegg.com
  • eBayCheck price at eBay

Store links may earn us a commission.

All 2 stores and price history →

Sony A90K 42 inch Ultra HD 4K Smart OLED TV (XR42A90K)

  • Baillio'sNew

    In stock

    $910.00Checked 1 h ago
    Visit Baillio's
  • ABC WarehouseNew

    Availability unknown

    $1,298.00Checked 1 h ago
    Visit ABC Warehouse
  • Schaefer'sNew

    Availability unknown

    $1,299.99Checked 1 h ago
    Visit Schaefer's
  • Jetson's ApplianceNew

    Availability unknown

    $1,299.99Checked 1 h ago
    Visit Jetson's Appliance
All 5 stores and price history →

Specs compared

SpecLG C1 OLED 4K Smart TVSony A90K 42 inch Ultra HD 4K Smart OLED TV (XR42A90K)
Display Type4K OLEDOLED
Refresh Rate120Hz Native120 Hz
Operating SystemwebOS 6.0Google TV
Resolution3840 x 21604K UHD
CEC EnabledYesYes (BRAVIA Sync Function)
HDTV Format4K4K UHD
ColorBlackTitanium, Black
HDRYesYes
Width57.1 in wide36.732
HDMI Ports4 HDMI ports4
Display Resolution4K Ultra HD (3,840 x 2,160)—
Picture Processorα9 Gen4 AI Processor 4K—
Show all 40 specsShow fewer specs
SpecLG C1 OLED 4K Smart TVSony A90K 42 inch Ultra HD 4K Smart OLED TV (XR42A90K)
HDR SupportDolby Vision IQ / HDR10 / HLG—
Bluetooth VersionYes (v 5.0)—
Dimensions without Stand1721 x 991 x 24.1—
Weight without Stand39.4—
VESA Mounting300 x 300—
Dolby AtmosYes—
G-Sync CompatibleYes—
High DefinitionYes—
Screen FormFlat—
Assistant Support

What reviewers say

LG C1 OLED 4K Smart TV

Professional reviewers and owners consistently praise the LG C1 for its outstanding picture quality, gaming features, and design. Common criticisms include the potential for burn-in, lower brightness than some LED TVs, and the lack of a next-gen tuner.

What people mention
  • Picture qualityPraisedReviewers highlight the perfect blacks, vibrant colors, and excellent contrast.
  • Gaming featuresPraisedOwners appreciate the 4K 120Hz support, VRR, and low input lag for gaming.
  • Burn-in riskCriticisedSome users worry about permanent burn-in from static elements like logos or news tickers.
  • BrightnessMixedWhile bright enough for most rooms, peak brightness is lower than some LED TVs, affecting HDR impact in bright scenes.

Sony A90K 42 inch Ultra HD 4K Smart OLED TV (XR42A90K)

  • 4.7 / 5192 ratings

Questions and answers

Which is better for a home theater setup?
The LG C1 is the better choice for home theaters due to its 65-inch size and wider soundstage. The Sony A90K's 42-inch screen is generally too small for typical living room viewing distances.
Which TV is better for PlayStation 5?
The Sony A90K has the edge for PS5 owners because of 'Auto HDR Tone Mapping' and 'Auto Genre Picture Mode.' However, the LG C1 is better if you have multiple consoles due to having more HDMI 2.1 ports.
Can the Sony A90K be used as a PC monitor?
Yes, the A90K is specifically designed to function as a high-end monitor. Its 42-inch size and adjustable stand make it much more ergonomic for desk use than the 65-inch LG C1.
Does the LG C1 support Dolby Vision?
Yes, the LG C1 supports Dolby Vision IQ, which uses a light sensor to optimize the picture based on the brightness of your room.

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Google Assistant, Amazon Alexa, Siri
—
ConnectivityBluetooth, Wi-Fi, USB, HDMI, Ethernet, Optical …—
Supported Streaming ServicesHulu, Netflix, Prime Video, YouTube, Spotify, D…—
Country Of ManufactureChina—
Screen Size65 inches—
Depth1.8 in deep—
Weight52.9 lb—
Release DateMay 2021—
Network Functionality—Smart TV, Google Assistant
Supported Resolutions—4K
Backlight Technology—OLED
Display Highlights—HDR
Max Resolution V-Sync—VRR
Display Aspect Ratio—16:9
Image Contrast Ratio—Near-infinite
Viewing Angle—Wide
Menu Language—ZULU, AFRIKAANS, ARABIC, ASSAMESE, BENGALI
Smart TV—Yes
Internet Streaming Services—Netflix