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Roku Pro Series OLED TV vs LG OLED42C4PUA 42-Inch OLED evo C4 4K TV

These are two very different OLEDs: the Roku Pro Series OLED is a 65-inch set built for a living room, while the LG C4 is a 42-inch premium panel built for a desk, bedroom or console. The LG wins on processing, gaming features and connectivity, with the α9 Gen7 chip, four HDMI 2.1 ports, G-Sync/FreeSync VRR and Dolby Vision. The Roku wins on sheer screen size and its fast, simple Roku interface, but it has only two HDMI ports, weaker processing and weaker sound. Buy the LG for picture quality and gaming; buy the Roku if a big screen matters more than refinement.

  • Choose the Roku Pro Series OLED if you want the largest OLED screen for a living room and value a simple, snappy smart interface over top-tier processing and port count.
  • Choose the LG C4 if you sit close, game on a console or PC, or want the best picture processing, Dolby Vision and four full-bandwidth HDMI 2.1 ports.

Prices

  • Roku Pro Series OLED TV: $799.99 at Walmart (last seen Nov 11)
  • LG OLED42C4PUA 42-Inch OLED evo C4 4K TV: $846.68 at Best Buy (last seen Nov 9)
  • Difference: the Roku Pro Series OLED TV is $46.69 cheaper than the LG OLED42C4PUA 42-Inch OLED evo C4 4K TV at the latest prices (Nov 9 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 and input response
  • Easy setup, praised by reviewers
  • 120 Hz refresh rate
  • Vivid, crisp picture with colors that pop
Cons
  • Only 2 HDMI ports
  • Processing trails Samsung and LG
  • Sound weaker than Roku's earlier LCD models
  • Some reviewers say last year's Pro Series LCD beats it in key areas
LG
LG OLED42C4PUA 42 Inch OLED evo AI C4 4K Smart TV

LG OLED42C4PUA 42-Inch OLED evo C4 4K TV

LG OLED42C4PUA 42 Inch OLED evo AI C4 4K Smart TV

$846.68at Best BuyChecked Nov 9
See all prices and details
Visit Best Buy
Pros
  • α9 AI Processor 4K Gen7 with strong upscaling
  • Four HDMI 2.1 ports at 4K 120Hz
  • G-Sync and FreeSync VRR for gaming
  • Dolby Vision, HDR10 and HLG
  • OLED evo contrast and wide viewing angles
Cons
  • 42-inch screen is small for a main living room
  • No anti-glare coating
  • Wi-Fi 5, not Wi-Fi 6
  • 20W 2.0 audio is modest without a soundbar

What separates them

Roku Pro Series OLED TVLG OLED42C4PUA 42-Inch OLED evo C4 4K TV
Screen size65 inches, suited to a living room at normal viewing distance42 inches, suited to a desk, bedroom or close seating
Picture processorRoku's processing is less advanced than Samsung or LGα9 AI Processor 4K Gen7 with AI Super Upscaling
HDR formatsHDR support, format list not detailedDolby Vision, HDR10 and HLG
Gaming features120 Hz refresh rate; VRR and gaming extras not specified120 Hz native, G-Sync and FreeSync VRR, ALLM, four 4K 120Hz ports
HDMI ports24, with eARC and QMS
AudioWeaker sound system than Roku's previous LCD models2.0-channel 20W with Dolby Atmos decoding
Smart platformRoku OS, praised as fast and easy to set upLG webOS with α9 AI features
Panel typeOLED (listed as QLED in the spec sheet)OLED evo, self-emissive with infinite contrast

Price history

$999.99$649.99
Oct 27Nov 11
  • Roku Pro Series OLED TV: lowest $649.99 on Nov 9 at Best Buy; $649.99 on Nov 11.
  • LG OLED42C4PUA 42-Inch OLED evo C4 4K TV: lowest $846.68 on Nov 9 at Best Buy.

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 OLED42C4PUA 42-Inch OLED evo C4 4K TV

  • Best BuyNew

    In stock

    $846.68Free shippingChecked Nov 9
    Visit Best Buy
  • TeciSoftNew

    In stockReturn policy

    $1,494.78Checked Nov 9
    Visit TeciSoft
  • AmazonNew

    Availability unknown

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

    $849.00Free shippingChecked Nov 9
    Visit Amazon
  • 191inc.comNew

    Availability unknown

    $1,199.99Checked Nov 9
    Visit 191inc.com

Store links may earn us a commission.

All 4 stores and price history →

Specs compared

SpecRoku Pro Series OLED TVLG OLED42C4PUA 42-Inch OLED evo C4 4K TV
Resolution3840 x 21604K
HDTV Format4K4K UHD
Display TypeQLED4K OLED
Refresh Rate120 Hz120Hz Native
HDMI Ports2 HDMI ports4
High DefinitionYes—
ColorBlack—
Screen FormFlat—
Assistant SupportGoogle Assistant, Amazon Alexa—
HDRYes—
ConnectivityBluetooth, Wi-Fi, USB, HDMI, Ethernet, Optical …—
Supported Streaming ServicesHulu, Netflix, Prime Video, Spotify, Disney+, R…—
Show all 40 specsShow fewer specs
SpecRoku Pro Series OLED TVLG OLED42C4PUA 42-Inch OLED evo C4 4K TV
Width64.6 in wide—
Screen Size65 inches—
Depth1.9 in deep—
Display Resolution—4K Ultra HD (3,840 x 2,160)
Picture Processor—α9 AI Processor 4K Gen7
HDR Support—Dolby Vision / HDR10 / HLG
Audio Output—20W
Speaker System—2.0 channel
HDMI Input—4ea (supports 4K 120Hz, eARC, VRR, ALLM, QMS (4…
USB Input

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 OLED42C4PUA 42-Inch OLED evo C4 4K TV

Reviewers and owners of the C4 line praise the contrast, motion handling and gaming features, and many 42-inch buyers use it as a monitor. Common complaints are limited brightness in bright rooms, weak built-in audio and reflections on the glossy screen.

What people mention
  • Picture qualityPraisedOwners single out the deep blacks, contrast and color accuracy, especially in dark rooms.
  • GamingPraisedGamers report low lag, working VRR and four HDMI 2.1 ports that cover console and PC at once.
  • BrightnessCriticisedReviewers say peak brightness trails brighter LCD and QD-OLED rivals, which shows in bright rooms and HDR highlights.
  • SoundCriticisedThe 20W speakers are described as thin, with most owners adding a soundbar.
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 at 4K 120Hz, G-Sync and FreeSync VRR, and ALLM. The Roku has 120 Hz but only two HDMI ports and no listed VRR certification.
Which has the better picture?
The LG C4 has the better processing and adds Dolby Vision. The Roku still delivers strong OLED contrast and vivid color, but its processing is less advanced.
Which is better for a bright living room?
The Roku's larger 65-inch panel suits a living room better, but neither has an anti-glare coating. The LG C4 is better suited to a dimmer room or closer seating.
Is the LG C4 worth stepping up to over the Roku?
If you game or care about processing and HDR formats, yes. If you mainly want the biggest OLED for movies and streaming, the Roku's 65-inch screen is the bigger draw.
Which lasts longer?
Both use OLED panels with similar longevity expectations. The LG's stronger feature set and four HDMI ports make it more future-proof for consoles and PCs.
Do I need a soundbar for either?
The LG's 20W 2.0 system is modest, and the Roku's sound is weaker than its earlier LCD models. A soundbar improves both.

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—
3ea (v 2.0)
Wi-Fi—Yes (Wi-Fi 5)
Bluetooth Support—Yes (v 5.1)
TV Weight without Stand—9.8
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—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