Comparison of Launch X431 IV, X431 PRO, X431 V 8inch and X431 PRO3

Launch X431 tools are popular among workshops and technicians for their powerful functions and professional service. In this post, I will share some hot-sale Launch X431 tools information and compare their features.

First comes the table to compare X431 IV, X431 PRO, X431 V 8inch and X431 PRO3:

(Y means yes in the table)

Launch X431 Launch X431 Diagun IV Full System Diagnsotic Tool X-431 Diagun 4 WiFi Bluetooth Scanner with Special Function Update Online Original Launch X431 V Pro Wifi Bluetooth Global Version Full System Diagnostic Tool Two Year Free Update Online (Promotion UK Ship No Tax)Launch X431 V 8inch Tablet Wifi/Bluetooth Diagnostic Tool 2 Years Free Update Online 2018 Edition Launch X431 V+ X431 Pro3 Wifi Bluetooth 10inch Tablet Full System Diagnostic Tool Update Online Two Years for Free
Item X431 IV X431 PRO X431 V 8 inch X431 PRO3
Automotive Diagnostics Y Y Y Y
upgrade CF Update Y Y Y
Remote Diagnosis Y Y Y
Recording and playback Y Y Y
special function Y Y Y
Waveform Display Y Y Y Y
VIN Identification Y Y Y
feedback Y Y Y
Diagnostic Software 29 100 70 100
SIZE 240 × 320 touch screen LCD 7-inch Tablet 8-inch Tablet 10.1-inch Lenovo Tablet
CPU 1GHz quad-core 1GHz quad-core 1.3GHz quad-core
RAM 16M 512M 512M/1GB 1GB
Hard Disk 1GCF card 4GB, 8GB TF card standard 4GB, 8GB TF card standard /16GB,32GB TF card standard 16GB, standard 32GBTF card
Battery 3000mAh 3000mAh/4290mAh 6600mAh
The Internet
Pexels The first 200 million, or 5 million


In the above table, you could check these four tools and compare their functions, price to choose the one fit you.

Below are the spotlights and user manual of each tool.


Launch X431 Diagun IV Full System Diagnostic Tool

Launch X431 Diagun IV is a wifi Bluetooth scanner without IP limit and authorization. It supports 11 special functions and over 20 languages. An easy-to-use scanner.

click the attachment to download the one you need:

Launch X431 Diagun IV User Manual

Launch X431 Diagun IV Test Report

Launch X431 Diagun IV Battery Test Report



Launch X431 Pro Global Version Full System Diagnostic Tool

Launch X431 V Wifi Bluetooth pad with all software installed inside is the updated version of Diagun3 and 4. It is easy and simple to operate with fast running speed.

click the attachment to download the one you need:

Launch X431 Pro User Manual


Launch X431 V 8inch Tablet Wifi/Bluetooth Diagnostic Tool

Launch X431 V 8 inch multi-language is a diagnostic tool without IP limit and activation. It supports many vehicles until the year 2017.

click the attachment to download the one you need:

Launch X431 V 8 inch User Manual

Launch X431 V 8 inch battery test report

Launch X431 V 8inch lithium battery un38-3 test report


Launch X431 V+ Pro3 Wifi Bluetooth 10inch Full System Diagnostic Tool

Launch X431 is a 10-inch Wifi Bluetooth diagnostic tablet with special functions supports more than 129 car models. It is a great replacement for X431 Master, Diagun 3 /4.


If you want to more other Launch X431 Products, please click here:

Launch X431 V+ Reviews – register, pair Bluetooth, compare with Snap On / Autel 908

Launch X431 V+ PRO3 WILL NOT WORK until you do 2 things.

the first thing is Registration

Basically need to use the serial number from the back of the device. Then you take that serial number and email it to the seller. After they activate your serial number.


The second thing is “pair” the wireless OBD2 connector:

you have to “pair” the wireless OBD2 connector to this. Somewhere on one of the diagnostic screens, up in the corner or something, it will ask you for the number that is on the wireless OBD2 connector. You have to put that in and essentially pair them, before this can work. That way if you ever lose the wireless connector, you can just buy another one for cheap and pair that one. Once they’re paired, you don’t have to do it again. But you won’t be using it until you do it.


After complete the two things, you could download all the updates directly on the device



The interface is like your standard Android tablet and it updates just like you would update your laptop computer. When I contacted the seller, who was very helpful, he did mention that the update timeframe is one year. But he assured me that the product can be used for many years afterwards with no worries. So as long as you are not constantly working on the latest models or cars, this should not be an issue.


Test report on what can work:

  1. I have used X431 PRO3 on many cars in my shop under repairing ,Incompatible with none of them. Bunches of special functions really helped me a lot. Far way beyond my expectations. This absolutely is the best no matter consider the price and functions.

  1. read code and clear fault memory and etc. The function of reading DTC can display the detailed information of DTC records retrieved from the vehicle’s control system, which is really helpful. This device also has many powerful special functions which can nearly diagnose every module of full systems of cars.


  1. The diagnostic connector of this device only for 12V car diagnosis.


  1. X431 PRO3 scanner worked flawlessly in Mexico and was put up to the test with vehicles from Latin America and US, it connected with various makes and models, so far ever thing we throw at it, communicates with.It has also communicated with the Nissans 4 cylinder diesel engines and many other small diesel engines sold in Latin America.
    One more comment, the scanner has a 10 inch display and connects via Bluetooth which makes connectivity much more easier and clean, no more cables hanging or keys to insert, the battery life is great and you even get all the other amenities that android offers. it has a front and rear facing camera and the case is made up of a combination of plastic and rubber to protect it from drops. Inside the box comes all the connections and adapters needed for OBD2 and OBD1.

    One more, this buy came with free two year updates which leaves us with a total of three year vehicle coverage which is hard to find.

    I would definitely recommend this X431 PRO3 scanner to all of you who want an OE level device and even for the professionals.


Compare with $8,000 Snap On units:

In my opinion, its well worth the money. It does the same thing all those overpriced $8,000 Snap On units do, for 1/6th of the price. Snap on can’t write the info reading software for the cars, they must rely on the manufacturer to tell them everything. So in that way, they’re no different. And look it up, that’s the only real way that matters. Anything else is just fluff and puff you don’t need. Buy X431 V+ PRO3, instead of getting ripped off. Now there is something that I think the company should be more clear about. This WILL NOT WORK until you do 2 things. You must email them your serial number. It’s useless until you do that. Apparently they’ve had a lot of knock offs, so they’re protecting their IP by having you email them before you can actually download the necessary software for it. That confused me initially, as it wasn’t mentioned in the paperwork. At least nowhere that I could see.

Actually, it’s not a fair comparison due to the Snap On being much more expensive and also has built in lab scope, etc


Compare with Autel MaxiSYS Pro MS908P:

X431 V+ PRO3 scanner is a great ADDITION to have if you already have some better ones. The newest version of the software only allows you to view 4 DATA PIDS at a time!!!!

I also own an Autel MaxiSYS Pro MS908P and it is at least twice as good as the Launch, for about €2300


In conclusion:

X431 V+ PRO3 scanner will do most of what you need but if you are a professional tech, this should only be considered as a back up or to try when your primary scanner fails to have certain feature.


How long X431 V+ PRO3 can be used:

I checked a few user groups on facebook and this seems to be the general consensus, that the useful life of one of these expensive auto scanning diagnostic tools is about 5 years (assuming you haven’t beat it to death before then), and that Launch makes the best third party tool out there.


Thanks to the real X431 V+ PRO3 scanner users of

More to be continued……

Launch X431 V vs X431 V+ vs Launch X431 Pro Mini

Launch x431 scan tools, which best? Here is a chart of 2017 hot Launch x431 series: Launch x431 v 8 inch tablet, Launch x431 v+, Launch x431 pro mini.


Launch x431 scan tools Launch X431 Pro mini  Launch X431 V+ 2017 Launch X431 V
Operation system Android Android Android
Screen size 6.8 inch 10.1 inch 8 inch
Resolution 720*1280 1280*800 1280*800
L*W*Hmm 205.2×110.7×40.0mm 276×206×55mm 210*125*8.95mm
Weight 0.5Kg 1.27kg 0.33kg
Processor 1.3GHz 4 cores 1.3GHz4 cores 1.0GHz4 cores
Cache 2GB 1GB 1GB
Hard disk 16GB

Support a 64GTF card


Support a 64GTF card


Support a 64GTF card

Battery 3000mAh 7000mAh 4200mAh
Communication wifi/4G module wifi/4G module wifi/4G module


So why do you need a new Launch X431 V   the 2017 year?


1- Special functions available

2- Full vehicle coverage: Brazilian, Indian, Chinese Australian, cars…

3- 2017 New vehicle support: BMW

4- 2017 New vehicle support: Toyota

5- VW online programming without German server


Go on your reading for details…


1- 2017 Launch x431 v supports Special Functions”

The 2017 version of Launch x431 v diagnostic tool 100% works good in special functions, especially perfect in auto key programming.

Special functions incl. Injector test, Fuel pump test, Purge control solenoid, Oil Reset Service , Steering Angle Calibration, Electronic Parking Brake Reset , Battery Register / Battery Maintenance , ABS Bleeding , Electronic Throttle Position Reset / Learn , Diesel Particulate Filter (DPF) Regeneration , Tire Pressure Monitor System Reset….


For repairmen working in a garage,

– The most popular functions in a repair garage: All covered!!!!!!

TPMS, Oil, Brake, SAS, Gear Learn & Bleeding….

– Very easy to operate: Click, click…done!

Launch engineers optimize the program;

users just click to finish it and never worry about damage when using

– Low cost: no need buy many repair parts


For example,

TPMS reset is necessary after the tire inflation or tire change; with 2017 version launch x431 v, the car repair shop can earn more, almost no need the cost.



2- Widest vehicle coverage among launch x431 scan tools

The new Launch x431 v 8-inch diagnostic tool has the widest vehicle coverage: up to 93 car brands about 220 car models.

– It can work good on Brazilian, Malaysian, Chinese, India and Australian cars, which almost can not be achieved with old launch 431 v scanners.

There almost no good and reliable diagnostic equipment for cars from Brazil, Chinese, India, Australia, so that the Launch team develops and adds the cars successfully.

– Also, it covers almost full European and USA cars.


Note: car software can be updated for FREE within 2 years.

Usually, what users pay for launch x431 software update is worth a new machine with a bit extra cost. So, the 2-year free update means that the users get 2 machines at a price of 1 machine; that is, save the cost for one machine.

3- 8-inch X431 V launch supports 2017 new BMW cars.


The 8-inch X431 V supports 2017 new vehicles, incl. the 2017 models, such as BMW the 2017 year.

BMW v49.55 software can diagnose the electronic systems of BMW up to 2017, incl. Engine, chassis, body and other parts. The operation is the same as the original scan tool.

More functions are supported, incl. automatically search, manually select, coding program and special functions….


Note: Coding program

The coding program is much easier to operate, compared with the original equipment. Just click on the tablet to finish coding. Repairmen/users can save the training cost, which usually is as several times as the tool.

The BMW coding program interface via Launch x431 v

new x-431 v bmw software features:

– bmw key programming…perfect

cheaper than a professional bmw key programmer

much much easier to program keys than with others

less risk to take

– special functions….ok

tested 100% with oil, tpms, brake, sas, gearlearn & bleeding

– free update with 2 years

4- The new launch can support 2017 Toyota cars.


The 2017 version launch obd2 scan tool is verified to work ok with 2017 Toyota models.

Toyota v48.82 software can diagnose powertrain, chassis and body systems up to 2017 on Toyota vehicles.

Special functions can be available even in the 2017 Toyota.

!!!! Highlight!!!

Module exchange, registration, tlectric throttle learning… OK for Toyota!

VIN Write..OK

This function will overwrite the following VIN with the new VIN

5- VW online programming: No need the German server

Online function is available through VW V28.0 software running on Launch x431 v 8-inch diagnostic tool:

– No need the German server

– save a lot

– a must for an auto repair shop

– the only tool can realize it

So, here are the TOP 5 reasons of the 2017 Launch x431 v 8-inch obd2 scan tool. Also, there are lots of benefits of it, such as

– 8 inch bigger screen with higher resolution
– reasonable PDA design
– better Bluetooth connector, distance: 10M(Without Obstacle)
– no need activation
– no IP and language limitation
– change the setup language yourself

– fast running speed



If you wanna know more about this new x431 v scan tool, you can go to;all details you want can be found there.

He is the man of his word to trust in you look for.

Original blog:

2017 Launch X431 V vs X431 V+ vs Launch X431 Pro Mini