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LG UltraWide 34 Inch 144Hz WQHD Curved (1800R) Monitor 34U640B with USB-C, HDR 10, and sRGB 99% (Typ.)
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UltraWide 34 Inch 144Hz WQHD Curved (1800R) Monitor 34U640B with USB-C, HDR 10, and sRGB 99% (Typ.) (34U640BB)

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$379.99from 3 retailers

As of October 21, 2026, the LG UltraWide 34 Inch 144Hz WQHD Curved (1800R) Monitor 34U640B with USB-C, HDR 10, and sRGB 99% (Typ.) is available from 3 Canadian retailers, starting at $379.99 CAD, lowest at Best Buy Canada and LG Canada.

Price Comparison - 3 retailers

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RetailerCurrent Price
Best Buy CanadaBEST
In Stock
$379.99Buy at Best Buy Canada
LG CanadaBEST
In Stock
$379.99Buy at LG Canada
Vuugo
In Stock
$486.88Buy at Vuugo
PC-CanadaLast confirmed Sep 26
Confirm availability with PC-Canada
$482.99Not confirmed today
ShopRBCLast confirmed Oct 1
Confirm availability with ShopRBC
$490.00Not confirmed today

Customer Ratings

4.753 reviewsBest Buy Canada
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Deal Score

Good Deal: price is below the 90-day average

86/100

How the deal score works

At a glance

  • Compared across 3 Canadian retailers, from $379.99 to $486.88: a $106.89 spread.
  • Available at 3 of the 141 Canadian retailers and brand stores we track.
  • At $379.99, this is the lowest price in the last 30 days (90-day range $379.99–$490.00, over 26 days of tracked prices).

Prices last verified October 18, 2026.

About the LG 34U640BB

The LG UltraWide 34 Inch 144Hz WQHD Curved (1800R) Monitor 34U640B with USB-C, HDR 10, and sRGB 99% (Typ.) carries model number 34U640BB and barcode (GTIN) 00195174147368. The LG 34U640BB's screen size, 33"+, is shared by 172 of the 1,244 monitors we list in stock with a known screen size (14%). The LG 34U640BB's resolution, QHD, is shared by 97 of the 332 monitors we list in stock with a known resolution (29%). The LG 34U640BB's refresh rate, 100–144 Hz, is shared by 276 of the 800 monitors we list in stock with a known refresh rate (35%).

At $379.99, the LG 34U640BB costs more than 695 of the 1,290 monitors we list with a price today (54%); the median is $349.99. Among the 115 LG monitors we list with a price today, which run from $99.99 to $10,772.99, the LG 34U640BB is the 54th lowest-priced. Best Buy Canada and LG Canada share the lowest new price for the LG 34U640BB, $379.99.

In the past 12 months we recorded 32 new prices for the LG 34U640BB from 6 retailers, the earliest on July 12, 2026 ($419.99). The LG 34U640BB's lowest recorded new price was $379.99 at Best Buy Canada on October 10, 2026, and its highest $490.00 at ShopRBC on August 22, 2026.

Compared with the products we list in stock today. How we compare

Price History (up to 6 months)

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Great price: at its 90-day low(lowest in the last 90-day: $379.99 on Oct 10, 2026)

Prices have trended down recently

Specifications

Model
34U640BB
Screen Size
34"
Resolution
2560x1440
Panel Type
IPS
Refresh Rate
144 Hz
Response Time
5 ms
Aspect Ratio
21:9
HDR
Yes
HDR Type
HDR10
Curved
Yes
Curvature
1800R
VESA Mount
Yes
VESA Pattern
100 × 100 mm
DisplayPort
1
USB-C Ports
1
Adjustable Stand
Yes
Sync Technology
FreeSync Premium
Weight
7.7 kg
Peak Brightness Nits
300 nits
Contrast Ratio
4000:1
Color Gamut Srgb Pct
99
Width
31.9"
Height
18.3"
Depth
8.7"
Height (without stand)
359 mm
Depth (without stand)
91.5 mm
Weight (without stand)
5.6 kg
Tilt
Yes
Height Adjustable
Yes
Release Year
2026
Anti Glare
Yes

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