Can it work on EV electric-vehicle? I want to find a speedometer for my model 3.

If you have a USB port or a cigarette lighter port on your car, (don’t know if they even put lighter ports in cars now) this unit works with all cars trucks and commercial vehicles that do have these ports or outlets. This unit does not show mileage driven only your speed.

How can we switch between mph and km/h?

Hi, thanks for your kind message. may i know where you will use this HUD GPS Speedometer? As far as we know, all cars use speed in MPH in USA, our device only has MPH speed also, we aim to offer a very simple but very accurate Speed Display. If you need display in speed in KM/H, please tell me again, we will introduce another model for you. Thanks again.

How accurate is it? Does any one compare it to car or phone?

I tested it against the GPS program on my phone and it was +/- 2 mph on average..

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VJOYCAR New Speedometer HUD GPS Digital Speed Meter MPH Speedo Head Up Display for Cars Trucks, USB Cable Plug & Play (G20-Only Green)

Product ID: 493153640

Details

Brand
VJOYCAR
Item Weight
0.11 kg
Material
Acrylonitrile
Number of Items
1
UPC
610521672619

📡GPS satellite speed data

🔌Plug & Play USB connection

🚀10 Hz real-time refresh rate

₩53646

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Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚗 Stay ahead of the curve with real-time speed insights!

EFFORTLESS SETUP - Plug & play USB design—no buttons, no settings, no manuals. Just connect and drive.
TRUSTED SUPPORTED - Top-rated (#3 in Automotive Speedometers) with 24/7 customer service and hassle-free refund policy.
INSTANT SPEED CLARITY - Real-time 10 Hz refresh rate ensures your speed updates faster than most HUDs—never miss a beat on the road.
SMART POWER MANAGEMENT - Automatically powers on/off with your car’s ACC—saving energy and eliminating distractions.
UNIVERSAL GPS ACCURACY - Independent GPS data means zero interference with your car’s electronics and compatibility across all vehicle types.

The VJOYCAR G20 HUD GPS Speedometer delivers ultra-fast 10 Hz real-time speed updates using satellite data, compatible with virtually any vehicle. Its plug-and-play USB design requires zero setup, automatically powers with your car’s ignition, and offers precise speed readings independent of your car’s internal systems. Backed by top rankings and responsive customer support, it’s the ultimate upgrade for millennial drivers craving accuracy and convenience.

Specifications

ASIN	B0BKG5KYXV
Best Sellers Rank	#7,878 in Automotive ( See Top 100 in Automotive ) #3 in Automotive Speedometers
Brand Name	VJOYCAR
Customer Reviews	4.3 4.3 out of 5 stars (999)
Included Components	HUD
Item Type Name	Universal HUD GPS Speedometer Digital Speed Meter Head Up Display Plug and Play for Cars Trucks Big Fonts KMH MPH New Car Accessories Electronics Factory Direct Offer Low Cost
Item Weight	0.11 kg
Manufacturer	VJOYCAR
Material Type	Acrylonitrile Butadiene Styrene (ABS)
Model	G20
Number of Items	1
Part Number	G20
UPC	610521672619

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₩53646

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Korea.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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