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Roku Pro Series OLED TV vs LG C4 OLED evo 42-Inch TV

These are two very different OLEDs, not two versions of the same set. The LG C4 is the better TV for picture processing, gaming and long-term ownership: the α9 Gen7 processor, four HDMI 2.1 ports, G-Sync and FreeSync Premium, Dolby Vision and Dolby Atmos, and webOS Re:New updates for up to five years. The Roku Pro Series OLED wins on size and simplicity: 65 inches against 42, a fast Roku interface that most people learn in minutes, and a flat, easy setup. Reviewers praise both for vivid picture and quick setup; the Roku draws notes that its processing trails Samsung and LG and that its sound is weaker than the older Pro Series LCD, while LG owners report excellent clarity and one burn-in case.

  • Choose the Roku Pro Series OLED if you want the biggest OLED screen for a living room and value a simple, snappy interface over top-tier processing.
  • Choose the LG C4 if you are buying for a dark room, a game console or a PC, and want the best processing, four HDMI 2.1 ports and Dolby Vision.

Prices

  • Roku Pro Series OLED TV: $799.99 at Walmart (last seen Nov 11)
  • LG C4 OLED evo 42-Inch TV: $817.53 at Best Buy (last seen Nov 2)
  • Difference: the Roku Pro Series OLED TV is $17.54 cheaper than the LG C4 OLED evo 42-Inch TV at the latest prices (Nov 2 and Nov 11)
Roku
Roku Pro Series OLED TV

Roku Pro Series OLED TV

$799.99at WalmartChecked 18 h ago
See all prices and details
Visit Walmart
Pros
  • Large 65-inch OLED screen
  • Fast, snappy Roku interface
  • 120 Hz refresh rate
  • Easy setup and simple remote
Cons
  • Only 2 HDMI ports
  • Processing trails Samsung and LG
  • Sound weaker than the older Pro Series LCD
  • Specs list QLED while the name says OLED
LG
LG 42-Inch C4 OLED evo

LG C4 OLED evo 42-Inch TV

LG 42-Inch C4 OLED evo

4.7(288 ratings)
$817.53at Best BuyChecked Nov 2
See all prices and details
Visit Best Buy
Pros
  • Excellent picture with perfect blacks
  • Four HDMI 2.1 ports with G-Sync and FreeSync
  • Dolby Vision and Dolby Atmos
  • Light, easy to wall-mount; no eye strain as a monitor
  • Up to 5 years of webOS updates
Cons
  • 42 inches is small for a main living-room TV
  • Magic Remote cursor is hard for some older users
  • Burn-in reported on one unit
  • No anti-glare coating

What separates them

Roku Pro Series OLED TVLG C4 OLED evo 42-Inch TV
Screen size65 inches42 inches
PanelOLED (listed as QLED in the specs)OLED evo with 8.3 million self-lit pixels
ProcessorStandard processing, behind Samsung and LGα9 AI Processor Gen7 with AI Picture Pro and AI Super Upscaling
HDMI ports24, all HDMI 2.1
Gaming features120 Hz refresh rate120 Hz, VRR, G-Sync and FreeSync Premium, Game Optimizer
HDR formatsHDRDolby Vision, HDR10, HLG
SoundWeaker than the previous Pro Series LCDDolby Atmos support
Smart platformRoku OS, fast and simplewebOS 24 with Magic Remote and up to 5 years of updates

Price history

$999.99$583.19
Oct 27Nov 11
  • Roku Pro Series OLED TV: lowest $649.99 on Nov 9 at Best Buy; $649.99 on Nov 11.
  • LG C4 OLED evo 42-Inch TV: lowest $583.19 on Nov 2; $849.00 on Nov 10.

Prices at every store

Roku Pro Series OLED TV

  • WalmartNew

    In stock

    $799.99Free shippingChecked 18 h ago
    Visit Walmart
  • AmazonNew

    Availability unknown

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

    $849.99Free shippingChecked 18 h ago
    Visit Amazon
  • vipoutlet.comRefurbished

    Out of stock

    $1,074.00Free shippingChecked 18 h ago
    Visit vipoutlet.com

Also available at

  • Best BuyCheck price at Best Buy
  • Newegg.comCheck price at Newegg.com
  • eBayCheck price at eBay

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All 3 stores and price history →

LG C4 OLED evo 42-Inch TV

  • Best BuyNew

    Availability unknown

    $817.53Checked Nov 2
    Visit Best Buy
  • AmazonNew

    Availability unknown

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

    $849.00Free shippingChecked Nov 9
    Visit Amazon
  • AmazonNew

    Availability unknown

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

    $849.00Checked Nov 2
    Visit Amazon
  • eBayNew

    Availability unknownSold by mercapool (95.2% positive, 14,300 ratings)Ships from Spain · duties may applyReturns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $1,035.18+ $83.57 shippingChecked Nov 9
    Visit eBay

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All 6 stores and price history →

Specs compared

SpecRoku Pro Series OLED TVLG C4 OLED evo 42-Inch TV
Resolution3840 x 21604K
High DefinitionYesYes
HDTV Format4K4K UHD
ColorBlackBlack
Screen FormFlatFlat
Display TypeQLEDOLED
Assistant SupportGoogle Assistant, Amazon AlexaGoogle Assistant, Amazon Alexa
HDRYesYes
Refresh Rate120 Hz120 Hz
ConnectivityBluetooth, Wi-Fi, USB, HDMI, Ethernet, Optical …Bluetooth, Wi-Fi, USB, HDMI, Ethernet, AUX
Supported Streaming ServicesHulu, Netflix, Prime Video, Spotify, Disney+, R…Netflix, Prime Video, YouTube, Disney+, Now TV
Screen Size65 inches42 inches
Show all 40 specsShow fewer specs
SpecRoku Pro Series OLED TVLG C4 OLED evo 42-Inch TV
HDMI Ports2 HDMI ports4
Width64.6 in wide—
Depth1.9 in deep—
Network Functionality—Smart TV
Supported Resolutions—4K
Backlight Technology—OLED
Display Highlights—HDR
Anti-Glare—No
Max Resolution V-Sync—VRR, Nvidia G-Sync VRR certification
Display Aspect Ratio

What reviewers say

Roku Pro Series OLED TV

Reviewers praise the vivid picture, fast interface and easy setup. One professional review notes the older Pro Series LCD outshines it in a few key areas.

What people mention
  • Picture qualityPraisedReviewers call the picture vivid and crisp, with colors that pop.
  • Interface speedPraisedOwners and reviewers say the Roku system and input response feel fast and snappy.
  • SetupPraisedReviewers describe setup as easy.
  • HDMI portsCriticisedOnly 2 HDMI ports limits how many devices can be connected.

LG C4 OLED evo 42-Inch TV

  • 4.7 / 5288 ratings

Reviewers rate the C4 highly, calling it an excellent TV with a very clear picture and simple plug-and-play setup. Packaging and wall-mounting drew praise, and one owner reported no eye strain using it as a computer monitor. Complaints were few: the Magic Remote's roving cursor is hard for elderly users, and one unit reportedly showed burn-in.

What people mention
  • Picture qualityPraisedOwners call the picture extremely clear, with deep blacks and strong contrast.
  • SetupPraisedReviewers describe plug-and-play setup and well-designed packaging that is easy to unbox.
  • MountingPraised
Reviews
  • Roku Pro Series OLED TV Review: Great for Gamers, but Not the Best Roku TV - CNET

Questions and answers

Which is better for gaming?
The LG C4. It has four HDMI 2.1 ports, VRR, G-Sync and FreeSync Premium certification, plus a Game Optimizer. The Roku has 120 Hz but only two HDMI ports and no VRR certification listed.
Which has the better picture?
The LG C4. Its α9 Gen7 processor and OLED evo panel give it an edge in upscaling and HDR, and it supports Dolby Vision. The Roku is vivid and crisp, but its processing is less advanced.
Is the Roku big enough for a living room?
Yes. At 65 inches it suits a typical living room at normal viewing distance. The LG at 42 inches is better for a bedroom, a desk or a small room.
Which lasts longer?
Neither has a published lifespan. LG promises up to five years of webOS updates, which keeps its apps current longer. One LG owner reported burn-in, so vary content on either OLED.
Should I step up to the LG if I mostly stream shows?
Only if you want better processing and Dolby Vision on a smaller screen. For casual streaming on a big screen, the Roku's interface is easier and its size is the bigger upgrade.
Do either need a soundbar?
The Roku's sound is weaker than its LCD predecessor, so a soundbar helps. The LG supports Dolby Atmos but is still a slim TV, so a soundbar improves both.

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—
16:9
Dynamic Contrast Ratio—Infinite contrast
Image Contrast Ratio—Excellent contrast
Viewing Angle—Wide viewing angles
Viewing Angle (Vertical)—178° vertical
Smart TV—Yes
Internet Streaming Services—Netflix
Network Connectivity—Ethernet, Wi-Fi
Video Interface—HDMI
PC Interface—HDMI
CEC Enabled—Yes (Simplink (HDMI CEC))
Expansion Slots—CI+
Dimensions—932x577x170 mm (with stand)
Screen Size Class—42 inches
High Dynamic Range (HDR)—true
High Dynamic Range Format—Dolby Vision, HDR 10, Hybrid Log-Gamma (HLG)
OLED Technology—OLED EVO
Motion Enhancement Technology—OLED Motion
Smart Platform—webOS
Buyers say it is easy to wall-mount and lighter than expected for its size.
  • RemoteCriticisedThe Magic Remote's roving cursor is reported as difficult for elderly users.