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The best OBD2 scanners tell you why the check engine light is on before you pay a shop just to read the code, and the better ones also read ABS, airbag and transmission faults or run tests on the car itself. We compared specs, expert testing and owner reviews to pick ten scanners, from cheap Bluetooth dongles for everyday drivers to bidirectional tablets for serious DIY mechanics, with a close look at the subscription and update fees that change the real cost.
Quick picks
Price ranges: $ under $50, $$ $50-$150, $$$ $150-$400, $$$$ $400+.
| Product | Best for | Price range | |
|---|---|---|---|
| BlueDriver Pro Next-Gen | Best overall Bluetooth | $$ | See price |
| Innova 5610 | Bidirectional handheld, no renewals | $$$-$$$$ | See price |
| OBDLink MX+ | Enthusiasts and third-party apps | $$ | See price |
| Autel MaxiCOM MK808Z | Advanced DIY tablet | $$$$ | See price |
| Launch X431 CRP919E BT | Widest coverage, newer protocols | $$$-$$$$ | See price |
| Topdon ArtiDiag Pro | Dealer-style functions | $$$$ | See price |
| Autel MaxiCheck ML629 | Budget ABS and airbag codes | $$ | See price |
| ANCEL BD310 | Handheld or Bluetooth | $$ | See price |
| Foxwell NT301 | Simple code reader | $-$$ | See price |
| FIXD Sensor | Non-technical drivers | $-$$ | See price |
1. BlueDriver Pro Next-Gen: Best Overall Bluetooth Scanner
BlueDriver plugs into the OBD2 port and turns your phone into a capable scan tool with no subscription. Beyond engine codes it reads ABS, airbag and tire-pressure systems on many common makes, and each code comes with a repair report listing likely causes and reported fixes. Several expert roundups name it the top phone-based scanner. It can’t run bidirectional tests.
Key specs
- Bluetooth with iOS and Android app
- Reads ABS, SRS and TPMS on many makes
- Live data, freeze frame, emissions readiness, Mode 6
- Code-specific repair reports
- No subscription or paid add-ons
👍 Pros
|
👎 Cons
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What owners say: DIYers like the clear explanations, live graphs and wide make support. Some found the first-time setup slower than expected.
2. Innova 5610: Best Bidirectional Handheld
The Innova 5610 brings shop-level features to a handheld without a yearly renewal fee. It can command parts such as injectors, the fuel pump relay and cooling fans, run relearns and calibrations, bleed ABS and reset service lights, and it includes a battery and alternator test. Updates are free. European coverage is weaker than on the pricier tablets.
Key specs
- Bidirectional tests
- OEM data for engine, ABS, SRS, transmission, TPMS
- Relearns, ABS bleed, service resets
- Battery/alternator test; hybrid battery features
- Free updates; RepairSolutions2 app
👍 Pros
|
👎 Cons
|
What owners say: Owners value getting bidirectional tests with no renewal bills. Some report update problems after a few years or quality-control issues with the box contents.
3. OBDLink MX+: Best for Enthusiasts
The OBDLink MX+ is a fast, reliable Bluetooth adapter that works with OBDLink’s own free apps and dozens of third-party apps, including FORScan for Ford owners. It reads Ford and GM network modules that many dongles miss, and a 2 mA sleep mode means it won’t drain your battery if you leave it plugged in.
Key specs
- Bluetooth for iOS, Android and Windows
- Works with many third-party apps
- Ford/GM MS-CAN and SW-CAN support
- BatterySaver sleep mode (2 mA)
- 3-year warranty
👍 Pros
|
👎 Cons
|
What owners say: Enthusiasts call it the adapter that just works every time, especially on GM and Ford vehicles. The main trade-off is cost.
4. Autel MaxiCOM MK808Z: Best Tablet for Advanced DIY
Autel’s MK808Z is a 7-inch Android tablet that scans every system on 80-plus makes, runs bidirectional tests and handles more than two dozen service functions such as electronic parking brake, steering angle and DPF regeneration. It is a big step up from code readers. Updates are free for the first year, then cost extra.
Key specs
- 7-inch Android tablet
- Full-system scans, 80+ makes
- Bidirectional control
- 28+ service functions
- 1 year of free updates, then paid renewal
👍 Pros
|
👎 Cons
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What owners say: Home mechanics praise Autel’s broad coverage. The renewal cost is the common complaint.
5. Launch X431 CRP919E BT: Best Vehicle Coverage
Launch’s CRP919E BT covers 150-plus brands and supports the CAN FD and DoIP protocols that many 2020-and-newer GM, Stellantis and BMW vehicles use, which some older scanners can’t talk to. Its Bluetooth interface lets you walk around the car with the tablet, and it includes two years of free updates.
Key specs
- 7-inch Android tablet with Bluetooth VCI
- 150+ brands
- Full bidirectional control; ECU coding
- CAN FD and DoIP support
- 2 years of free updates
👍 Pros
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👎 Cons
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What owners say: Users praise Launch for coverage and value compared with pro brands. Renewal pricing is the usual caveat.
6. Topdon ArtiDiag Pro: Best for Dealer-Style Functions
The ArtiDiag Pro is aimed at experienced home mechanics and small shops. It scans engine, transmission, ABS, airbag, TPMS and immobilizer systems on 72-plus makes, runs actuator tests, offers 35 service functions and can do online coding on VW group, BMW and Mini vehicles. It costs much less than tool-truck scanners, but renewal is pricey.
Key specs
- 7-inch Android tablet
- Full-system diagnostics, 72+ makes
- Bidirectional actuator tests
- 35 service functions; online coding for VW/BMW/Mini
- 2 years of free updates
👍 Pros
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👎 Cons
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What owners say: Reviewers found it powerful but advise care with advanced functions you don’t fully understand. Renewal cost is the main drawback.
7. Autel MaxiCheck ML629: Best Budget for ABS and Airbag Codes
If you need more than engine codes but don’t want to spend tablet money, the ML629 reads ABS and airbag (SRS) codes plus engine and transmission data in a simple wired handheld. It has no app and no bidirectional features, and the interface feels dated.
Key specs
- Wired handheld
- Engine, transmission, ABS and SRS codes
- Live data
- No app; not bidirectional
👍 Pros
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👎 Cons
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What owners say: Buyers like that it covers airbag and ABS lights cheaply. The small, basic display is the common complaint.
8. ANCEL BD310: Best 2-in-1 Handheld and Bluetooth
The BD310 works as a corded handheld with its own small color screen or as a Bluetooth adapter for the ANCEL app, which adds performance testing. That flexibility is handy if several people in the household use it. The 2-inch screen is small.
Key specs
- Handheld or Bluetooth app mode
- Live data and performance tests (app)
- 2-inch color screen
- 3-year warranty
👍 Pros
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👎 Cons
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What owners say: Owners praise the durability and easy Bluetooth setup. The small screen and a confusing manual are frequent complaints.
9. Foxwell NT301: Best Simple Code Reader
The NT301 is a plug-in handheld that reads and clears check engine codes, shows live data and has a one-button emissions readiness check, so you can see whether the car is ready for an inspection. There is no pairing, app or subscription. It won’t give repair guidance.
Key specs
- Wired handheld, no app
- Generic and manufacturer-specific engine codes
- Live data
- One-button I/M readiness; EVAP and O2 tests
👍 Pros
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👎 Cons
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What owners say: Users describe it as a simple tool that does exactly what it promises. Those wanting more depth move up to the ML629 or BlueDriver.
10. FIXD Sensor: Best for Non-Technical Drivers
FIXD keeps things simple: a small Bluetooth sensor explains check engine codes in plain English, tracks maintenance and can watch several family cars from one account. The hardware is cheap, but it only reads engine codes, and many features (mechanic hotline, repair cost estimates) require a paid Premium subscription.
Key specs
- Bluetooth sensor with iOS/Android app
- Reads and clears check engine codes only
- Maintenance tracking; multiple vehicles
- Optional Premium subscription
- Gas vehicles 1996+, diesel 2008+
👍 Pros
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👎 Cons
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What owners say: Some drivers appreciate the simple explanations, but many reviews complain about subscription charges and cancellation. Read the plan terms before you buy.
How to choose an OBD2 scanner
- Vehicle and system coverage. Check your make and model year, especially for European cars, and whether the tool reads only engine codes or also ABS, airbag and transmission.
- Full-system vs. bidirectional. Full-system scanners read every module. Bidirectional tools can also command parts to run, which helps pinpoint faults but isn’t needed just to read codes.
- Total cost, including updates. Compare three-year costs. Some tablets charge yearly renewals after a free period; BlueDriver and Innova include updates; FIXD sells an app subscription.
- Connection type. Bluetooth dongles use your phone, wired handhelds work on their own, and tablets offer the biggest screens and most features.
- Newer protocols. Many 2020-and-newer vehicles use CAN FD or DoIP. If you own one, make sure the scanner supports it.
- Service functions. Oil reset, parking brake, steering angle, ABS bleed, TPMS and DPF functions matter if you do your own maintenance.
- Repair guidance. Code explanations and likely fixes are especially valuable for beginners.
FAQ
Do OBD2 scanners work on every car?
They work on most cars and light trucks sold in the U.S. from the 1996 model year on, which use the OBD-II standard. Manufacturer-specific codes and advanced functions vary by brand and scanner, so check the tool’s coverage list for your vehicle.
Can an OBD2 scanner fix my car?
No. It reads codes and data and can clear the check engine light, but the light will come back if the underlying problem isn’t repaired.
Do I need a bidirectional scanner?
Only if you want to command components, such as cycling the ABS pump or testing injectors. For reading and clearing codes, a standard scanner is enough. Follow the manufacturer’s instructions for any active test.
Can I leave a Bluetooth OBD2 dongle plugged in?
Only if it has a low-power sleep mode, like the OBDLink MX+. Otherwise, unplug it when you aren’t using it to avoid slowly draining the battery.
Related guides
Sources
MotorBiscuit: The Best OBD2 Scanners of 2026; Road & Track: Best OBD-II Scanners; The Drive: Best OBD2 Scanner; BlueDriver Pro Next-Gen; OBDLink MX+; Innova 5610; Topdon ArtiDiag Pro; ConsumerAffairs: FIXD reviews. Owner feedback is summarized in our own words from public reviews. Photos courtesy of Unsplash.