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These are the best selling OBD 2 Bluetooth Adapters at The following are brief descriptions and comparison. All products work with android smartphones and Windows PCs. OBD 2 Bluetooth Adapter Reviews help you choose the best adapter for you.

BAFX Products (TM) – ELM 327 Bluetooth OBD2 scan tool

BAFX Products OBD2 scan tool is the best selling product in Code Readers & Scan Tools at It is a standard performance of OBD 2 adapter. The size of the adapter is relatively big for the recent trend of OBD 2 adapters. BAFX Products has not upgraded or released other adapters yet. It comes with one year limited manufacturer warranty. The company has a reputable customer support. It is a safe place to buy. #1 in Code reader & Scan tools at, available with more than 50% discount.

BlueDriver Bluetooth Professional OBDII Scan Tool for iPhone, iPad & Android

BlueDriver Bluetooth Professional OBDII Scan Tool is developed by Lemur Vehicle Monitors, professional engineers in North America. They offer great supports, and you can access to a database for vehicle repairs through their app called BlueDriver OBD2 Scan Tool. BlueDriver uses Bluetooth connection. However, it works with not only Android but also iOS devices! Another great feature is that it can read ABS and SRS codes on vehicles from some manufacturers (currently Ford, GM, Chrysler, and Toyota.) Unfortunately, BlueDriver works with their app only. Thus it can’t work with third party apps such as Torque, ScanXL, etc. But if vehicle repair is your primary purpose of having a scan tool, this would be the best! (Click here for more details)

ScanTool 426101 OBDLink MX Bluetooth/OBD-II Scan Tool Interface

OBDLink MX is the world’s fastest OBD adapter available on the market. This adapter accelerates Android apps and PC software up to 4 times faster. With flawless reading of sensor’s data and more graph point, it is the best choice for those who need advanced data logging and real time analysis. Battery saver technology allows you to leave the adapter plugged into the port without draining the vehicle’s battery. The item comes with the PC software, OBDwiz  (a $30 value). OBDlink MX supports many apps and software and 3 year warranty. You can see more details and video review here.

ScanTool 427201 OBDLink LX Bluetooth OBD-II Scan Tool Interface

OBDLink LX is a cheaper version of OBDLink MX. It is about a half price of MX, but its performance is the same except that it can’t access to Ford MSC and GMLAN protocols for enhanced diagnostics, tests, or controls. Engine data shows in real time with quick response. BatterySaver technology lets you leave the device plugged to OBD port without draining a vehicle’s battery. Click here to see more details.

Automatic Pro 3G Connected Car Adapter

3rd version of Automatic adapter relies on 3G network. It allows you to track a vehicle from anywhere in real time. Unlike previous versions, you don’t need your smartphone in the car connected with the adapter. Although the adapter can work without smartphones, it can be connected to your smartphone via Bluetooth. And, you can also use as a Bluetooth OBD adapter with some 3rd party apps. Connecting to Alexa, Phillips Hue, Nest, or many other apps through IFTTT channels expands usage beyond regular OBD adapters. Click here to see details.

Newest Bluetooth V1.5 OBD2 OBD II Auto Diagnostic Scanner Mini Adapter

Super Mini Elm327 Bluetooth OBD scanner is currently the smallest and lightest adapter on the market. It measures only 1.8 x 1 x 1.4 inches and weigh 1.6 ounces. Depending on the location of OBD port, this compact design gives you huge advantage over larger size of adapters. Although all OBD 2 connectors are standardized, some of them make a loose fit. If it faces downward the adapter will fall off while driving. And also if it is located where it disturbs pedal operations in driving, you might kick it and it is not safe at all. This adapter is the great choice if your car is stick-shift. The benefits of this tiny item can be enormous. Click here to read full reviews.

PLX Devices Kiwi 2 Bluetooth OBD Scan Tool

PLX Devices KiWi 2 Bluetooth OBDII Scan Tool is measured 1.25 x 2.72 x 0.60 inch. It’s thinner than the first generation of interface, Kiwi Bluetooth by 0.25 inch.  And a length of cable is reduced from 6 feet to 3 feet. It allows you to place it anywhere for secure Bluetooth connection. It has built-in power switch for saving the vehicle’s battery from draining after 5 minites of inactivity. Click here to see more details.

PLX Devices Kiwi 3 Bluetooth OBD2 Diagnostic Scan Tool

Kiwi 3 is the third generation of OBD adapter from PLX Devices. Faster and smaller than Kiwi 2. Unlike Kiwi 2 and most Bluetooth OBD adapters, Kiwi 3 is compatible with iOS devices, such as iPhone, iPad, or iPod Touch as well as Android and Windows devices. It automatically goes to sleep when no use so you can leave the adapter plugged in OBD port.

Excelvan ELM327 v1.5 Mini Small Interface OBD2 Scanner

Excelvan Vgate ELM327 Bluetooth Mini OBD2 Scanner is Smallest and lightest. It is measured only 2.5 x 1.8 x 1.0 inches. It weighs 1.6 oz. It is unlike to fall off from OBD port by itself or interfere with your driving. The CD that comes with the adapter has Windows PC software, but they are not so useful. Most of them are free demo versions, and their functions are very limited. wOBD is the only free software that works without limitations. One of the most popular and budget adapters at

Please note that these are the adapters using Bluetooth connection. Not all Bluetooth adapters are compatible with iOS devices. If you want wireless connection with iOS device, you may need a WiFi Adapter. Looking for USB Interface for Windows PC? Click here.

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