Bluetooth OBD2 Scanner vs Wired Handheld: Which Should You Buy?

This lesson draws on the OBDLink, BlueDriver, Innova and Autel product pages, CARB’s OBD II fact sheet and EU Directive 98/69/EC. How we research explains the method.

Adapter or handheld: what changes

A Bluetooth adapter is a small plug with no screen. It sits in the OBD2 port, and an app on your phone does the reading, explaining and saving. OBDLink lists free iOS, Android and Windows apps for the MX+ and says dozens of third-party apps support it, while BlueDriver describes its adapter working with iOS and Android devices over Bluetooth.

A wired handheld has its own screen and buttons and runs on the car’s power through its cable: Autel lists 8-18 V from the vehicle battery for its AL629. Innova says its 5210 can be used right out of the box, with its phone app optional. There is nothing to pair, though updates take an extra step: Autel says the AL629 updates over USB.

North America only: check the market your car was built for

BlueDriver says the Pro works with 1996 and newer vehicles sold in North America. Its compatibility checker adds that OBD2 compatibility depends on the region or country where a vehicle was originally sold, not where it was assembled. Innova says its tools are designed to comply with North American OBD protocols exclusively and may not work correctly in other countries.

That matters if you live in the UK, the EU or Georgia. A car first sold in Europe needs a tool that supports EOBD, and OBDLink says the MX+ supports EOBD, JOBD “and all other international variants of OBD-II.”

A US-market import is the other way round. It was originally sold in North America, the market BlueDriver and Innova build for, so check the car’s original market before you rule a tool in or out.

Which cars have OBD2 at all

In the US, CARB says all 1996 and newer gasoline cars and trucks, and all 1997 and newer diesel cars and trucks, must have OBD II. OBDLink likewise says the MX+ works with all 1996 and newer cars and light trucks sold in the US.

In the EU, Directive 98/69/EC brought in OBD by vehicle class:

• Most petrol cars: new models from January 1, 2000, and all new cars from January 1, 2001.
• Most diesel cars (up to six seats): new models from January 1, 2003, and all new cars from January 1, 2004.
• Heavier passenger vehicles and many vans: a year or more later, depending on class and fuel.

These dates apply to cars approved for the EU market. A car built for another market follows that market’s rules, which is why the original market matters more than where the car is registered today.

Left in the port or kept in a toolbox

Many adapters are meant to stay in the port: OBDLink lists automatic sleep and wake-up and a low-power BatterySaver mode for the MX+. Whether any adapter can stay in without draining a parked car’s battery is its own question, answered with the makers’ standby figures in can you leave an OBD2 scanner plugged in.

A handheld takes its power from the port only while its cable is connected. You plug it in, read or clear the codes, and take it with you. That also means it can live in a toolbox and serve several cars without any pairing.

If an ABS or airbag light is your reason to buy, the form factor matters less than coverage: start with can an OBD2 scanner read ABS and airbag codes.

Who should pick which

Phone users, Windows users and owners of European-market cars: the OBDLink MX+, for its apps, third-party support and international OBD variants. OBDLink adds a 3-year warranty.

OBDLink

OBDLink MX+

A Bluetooth OBD2 adapter with free iOS, Android and Windows apps that also works with third-party apps. OBDLink lists EOBD and JOBD support and a low-power sleep mode.

Key specs

• iOS, Android and Windows apps
• Works with third-party apps
• 1996+ US vehicles; EOBD and JOBD
• 3-year warranty

Mid-range

Paid link

View on Amazon (opens in a new tab)

North American cars, with repair reports and no subscription: the BlueDriver Pro. How it compares with FIXD is the next lesson: BlueDriver vs FIXD.

BlueDriver

BlueDriver Pro

A Bluetooth OBD2 adapter for iOS and Android with repair reports, freeze frame and smog check readiness, and no subscription fees. Made for 1996+ vehicles sold in North America.

Read the full guide

Key specs

• No subscription fees
• 1996+ vehicles sold in North America
• Repair reports, freeze frame, smog check
• 1-year limited warranty

Mid-range

Paid link

View on Amazon (opens in a new tab)

No phone at all, North American car: the Innova 5210 handheld, which Innova says reads engine and ABS codes and tests the battery and charging system. It does not read airbag codes.

Innova

Innova 5210

A handheld code reader for engine and ABS codes with a battery and charging system test. It does not read SRS (airbag) codes and is built for North American vehicles and OBD protocols.

Key specs

• Engine and ABS codes; no SRS (airbag)
• Battery and charging system test
• North American OBD protocols only

Mid-range

Paid link

View on Amazon (opens in a new tab)

Buying a scanner as a gift? Check the car’s model year and original market first; gifts for new drivers has a quick fit check for each gift.

Sources

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• OBDLink MX+ product page and specifications
• BlueDriver Pro product page
• BlueDriver Pro vehicle compatibility checker
• Innova 5210 product page
• Autel AutoLink AL629 product page
• California Air Resources Board: On-Board Diagnostic II (OBD II) Systems Fact Sheet
• Directive 98/69/EC on emissions from motor vehicles (EUR-Lex)