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Toshiba 50LF621U21 50-inch 4K Fire TV vs Toshiba C350 Series 4K Fire TV

The C350 is the better buy for most people. It is 15 inches larger, has a fourth HDMI port and an anti-glare screen, and its picture holds up better at an angle. The 50LF621U21 is the pick only when a 50-inch set is the hard limit for the room. Both are budget 60 Hz LED sets with Fire TV built in, so expect similar smart features and similar build; owners of both lines report the picture is fine for streaming and casual viewing but not for serious dark-room movie watching.

  • Choose the Toshiba 50LF621U21 if your wall or stand cannot fit anything bigger than 50 inches and you want Dolby Vision support in a small room or bedroom.
  • Choose the Toshiba 65" Class C350 Series if you have the space for a 65-inch screen and want the bigger picture, an extra HDMI port and less glare for a living room.

Prices

  • Toshiba 50LF621U21 50-inch 4K Fire TV: $380.00 at Mercari (last seen Nov 9)
  • Toshiba C350 Series 4K Fire TV: $359.99 at eBay (last seen Nov 9)
  • Difference: the Toshiba C350 Series 4K Fire TV is $20.01 cheaper than the Toshiba 50LF621U21 50-inch 4K Fire TV at the latest prices (Nov 9)
Toshiba
Toshiba 50LF621U21 50-inch Smart 4K UHD with Dolby Vision

Toshiba 50LF621U21 50-inch 4K Fire TV

Toshiba 50LF621U21 50-inch Smart 4K UHD with Dolby Vision

$380.00at MercariChecked Nov 9
See all prices and details
Visit Mercari
Pros
  • Fits small rooms and bedrooms where 65 inches is too big
  • Dolby Vision support for compatible streaming content
  • Three HDMI ports cover a console, a soundbar and a streaming stick
  • Fire TV interface with Alexa voice control built in
Cons
  • Narrow 89-degree viewing angle washes out from the side
  • Only 50 inches, so less immersive for a main room
  • No anti-glare coating, so reflections show in bright rooms
  • 60 Hz panel limits motion smoothness for sports and games
Toshiba
Toshiba 65" Class C350 Series LED 4K UHD Smart Fire TV

Toshiba C350 Series 4K Fire TV

Toshiba 65" Class C350 Series LED 4K UHD Smart Fire TV

$359.99at eBayChecked Nov 9
See all prices and details
Visit eBay

Store links may earn us a commission.

Pros
  • Big 65-inch picture for a living room
  • Four HDMI ports for several devices
  • Anti-reflective finish handles windows and lamps better
  • Measured contrast ratio gives decent black levels for the class
  • Fire TV with Alexa voice control
Cons
  • Picture dims noticeably when viewed from the side
  • No Dolby Vision listed
  • 60 Hz refresh rate, not ideal for fast gaming
  • Large footprint needs a wide stand or wall mount

What separates them

Toshiba 50LF621U21 50-inch 4K Fire TVToshiba C350 Series 4K Fire TV
Screen size50 inches65 inches
HDR formatDolby Vision listed alongside HDRHDR, no Dolby Vision listed
HDMI inputs34
Screen finishStandard finishAnti-reflective finish
Viewing angle89 degrees, narrowWide, but visibly darker off-axis
ContrastNot published2,594:1 measured contrast ratio
Refresh rate60 Hz60 Hz
Smart platformFire TV Edition with AlexaFire TV with Alexa

Price history

$380.00$279.99
Nov 9Nov 11
  • Toshiba 50LF621U21 50-inch 4K Fire TV: lowest $380.00 on Nov 9 at Mercari.
  • Toshiba C350 Series 4K Fire TV: lowest $279.99 on Nov 9 at Best Buy; $279.99 on Nov 11.

Prices at every store

Toshiba 50LF621U21 50-inch 4K Fire TV

  • MercariNew

    In stock

    $380.00Free shippingChecked Nov 9
    Visit Mercari
  • eBayPre-owned

    Availability unknown

    $200.00+ $53.00 shippingChecked Nov 9
    Visit eBay

Store links may earn us a commission.

All 2 stores and price history →

Toshiba C350 Series 4K Fire TV

  • eBayPre-owned

    Availability unknownSold by em1buddy00 (100% positive, 445 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $18.99+ $5.78 shippingChecked Nov 9
    Visit eBay
  • eBayNew

    Availability unknownSold by sunriseshopping (100% positive, 75 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $359.99Free shippingChecked Nov 9
    Visit eBay
  • SearsNew

    Availability unknownSold by Tekcom Shop USA

    $513.65Checked Nov 9
    Visit Sears
  • Best BuyNew

    Out of stock

    $279.99Free shippingChecked 15 h ago
    Visit Best Buy

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

All 3 stores and price history →

Specs compared

SpecToshiba 50LF621U21 50-inch 4K Fire TVToshiba C350 Series 4K Fire TV
Resolution3840 x 21604K UHD
CEC EnabledYesYes (HDMI-CEC)
HDTV Format4K4K UHD
Screen FormFlatFlat
Display TypeLEDLED
Refresh Rate60 Hz60Hz
HDMI Ports3 HDMI ports4
Viewing Angle89° viewing angleWide viewing angle, Visibly darker at a wide an…
High DefinitionYes—
ColorBlack—
Assistant SupportAmazon Alexa—
HDRYes—
Show all 32 specsShow fewer specs
SpecToshiba 50LF621U21 50-inch 4K Fire TVToshiba C350 Series 4K Fire TV
ConnectivityWi-Fi, USB, HDMI, Optical Audio—
Supported Streaming ServicesHulu, Netflix, Prime Video, YouTube, HBO, Disne…—
With V-ChipYes—
Screen Size50 inches—
Network Functionality—Smart TV
Supported Resolutions—4K
Smart TV—Yes
Internet Streaming Services—Netflix, Disney+, Hulu
Network Connectivity—Wi-Fi

What reviewers say

Toshiba 50LF621U21 50-inch 4K Fire TV

Owners and reviewers treat this as a solid entry-level 4K set: the Fire TV software and Dolby Vision support get credit, while picture brightness, black levels and off-angle viewing draw complaints. Most say it is good for the money as a secondary TV, not a home-theater centerpiece.

What people mention
  • Picture qualityMixedReviewers call the 4K image sharp for the class but say contrast and black levels are only average.
  • BrightnessCriticisedOwners report the panel is dim, so Dolby Vision HDR highlights look muted.
  • Viewing angleCriticisedColor and contrast fade when watching from the side, matching the narrow rated angle.
  • Fire TV softwarePraisedUsers like having streaming apps and Alexa built in without an extra device.

Toshiba C350 Series 4K Fire TV

Owners and reviewers generally find the Toshiba C350 to be a decent budget TV with a responsive smart interface and good value, but they often note that picture quality is merely adequate, especially in bright rooms or off-axis.

What people mention
  • Picture qualityMixedReviewers say the 4K picture is sharp but contrast and black levels are average, so dark scenes look gray.
  • HDR performanceCriticisedThe TV's HDR mode doesn't get bright enough to make highlights pop, according to critics.
  • Smart featuresPraisedThe Fire TV interface is quick and easy to navigate, with voice search working well.
  • ValuePraisedMany owners feel the TV offers a lot for the money, especially given its size and built-in streaming.

Questions and answers

Which is better for a bright living room?
The C350. Its anti-reflective finish cuts glare and the larger screen is easier to watch from across a room. The 50LF621U21 has no anti-glare coating and a narrow viewing angle.
Is the 50-inch worth it over the 65-inch?
Only if space is the constraint. The 50LF621U21 adds Dolby Vision and fits tight rooms, but you give up 15 inches of screen, one HDMI port and the anti-glare finish.
Which has better picture quality?
The C350 has the edge. It has a published contrast ratio of about 2,594:1 and a wider viewing angle, though it still darkens off-axis. Both are 60 Hz LED sets, so neither is a step up in motion handling.
Which is better for gaming?
Neither is a gaming set. Both run at 60 Hz. The C350's extra HDMI port makes it easier to keep a console connected alongside other devices.
Do both have Fire TV and Alexa?
Yes. Both run Fire TV with Alexa voice control, so streaming apps and voice search work the same way on either set.
Which lasts longer?
There is no reliable lifespan difference between the two. Both are budget LED TVs from the same brand, and long-term reliability depends more on the individual unit than on the model.

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Buying guides that pick them

  • Best Toshiba TVs
Video Interface
—
HDMI
PC Interface—HDMI
Backlight Technology—LED
Display Highlights—HDR
Anti-Glare—Anti-reflective finish
Display Aspect Ratio—16:9
Image Contrast Ratio—2,594:1
Viewing Angle (Vertical)—178 degrees
Menu Language—Spanish, English, French
Color Temperature—Yes
Stand And Mount—Stand Included