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)

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

€ 64.85

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚗 Stay Ahead, Stay Connected: Real-Time Speed Meets Effortless Style

INSTANT SPEED CLARITY - Experience ultra-responsive 10 Hz refresh rate for real-time speed updates that keep you ahead of the curve.
SMART POWER MANAGEMENT - Automatically powers on with your car’s ACC and shuts off when parked, ensuring zero battery drain and maximum convenience.
UNIVERSAL GPS ACCURACY - Harness satellite precision independent of your vehicle’s engine or OBD system—perfect for any ride from trucks to motorcycles.
EFFORTLESS INSTALLATION - No buttons, no settings, no hassle—just plug into any USB port and hit the road with zero setup time.
TRUSTED SUPPORT WARRANTY - Backed by 24/7 customer service and a satisfaction guarantee, so you never drive uncertain.

The VJOYCAR G20 HUD GPS Speedometer delivers precise, real-time speed data with a high-frequency 10 Hz chipset, using GPS satellites for universal vehicle compatibility. Its plug-and-play USB design ensures quick installation without any complex setup, while automatic power control conserves energy by activating only when your car is on. Designed for professionals who demand accuracy and convenience, it supports a wide range of vehicles and comes with dedicated customer support for a worry-free experience.

Specifications

ASIN	B0BKG5KYXV
Best Sellers Rank	#119,630 in Automotive ( See Top 100 in Automotive ) #74 in Automotive Speedometers
Brand Name	VJOYCAR
Customer Reviews	4.3 4.3 out of 5 stars (1,008)
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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