Best Budget Car Code Readers Less Than $100
Best Budget OBD2 Scanners and Car Code Readers Under $100
Looking for a high-value OBD2 scanner or car code reader that’s portable, easy to use, and packed with essential features? Whether you’re a DIY car owner, an auto enthusiast, or just tired of paying for basic fault checks, a quality car diagnostic tool can save you time, money, and trips to the garage.
We’ve rounded up some of the best budget-friendly OBD2 scanners and car code readers under $100, trusted by thousands of drivers. From simple plug-and-play handheld readers to wireless Bluetooth devices, here’s your guide to choosing the right tool for your needs.
Quick Buying Tips
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Fast code reading:Good for instant diagnostics and basic engine checks.
- Oil / light reset:Handy for clearing service reminders or warning lights.
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Wireless diagnostics:choose Bluetooth models if you prefer a phone interface and better data visualization.
- Advanced protocols:DOIP / CAN FD / FCA may be required for newer or manufacturer-specific vehicles—verify before purchase.
Top Budget OBD2 Scanners and Car Code Readers
Vdiagtool VD30Pro — $35.99
Entry-level handheld OBD2 scanner. Reads and clears common fault codes, shows live sensor data and freeze-frame info. No phone needed — compact, plug-and-play, and budget-friendly.
Best for: Budget-first buyers, commuters, or anyone needing a quick “check engine” diagnostic tool.
XTOOL AD20 PRO — $39.99
Bluetooth-enabled scanner with Oil Light Reset. Pairs with your phone for easy readings, wireless convenience, and a useful maintenance function most basic readers lack.
Best for: Drivers who want wireless convenience plus essential maintenance functions.
Vident iSmartDiag510 — $79
Mid-range wireless OBD2 scanner for phones/tablets. Multi-system scanning, routine service functions, live data, freeze-frame info, and history storage for export.
Best for: Owners who need more than engine read/erase — common maintenance features made simple.
Vident iSmartDiag510 Pro — $99
Pro version expands coverage and adds manufacturer-level functions. Suitable for DIYers or small shops needing deeper diagnostics without high-end professional tools.
Best for: Users seeking enhanced maintenance options and full-system coverage.
XTOOL A30D — $89
Compact Bluetooth scanner supporting full-system diagnostics across many car models. Displays live data clearly in the mobile app — professional-level features in a budget-friendly package.
Best for: Drivers wanting wireless full-system diagnostics on their phone without bulky devices.
Get Your Scanner
Entry-Level Comparison: Vdiagtool VD30Pro vs XTOOL AD20 PRO
| Feature | Vdiagtool VD30Pro | XTOOL AD20 PRO |
|---|---|---|
| Price | $35.99 | $39.99 |
| Upgrade Period | Lifetime free | Free for life |
| Upgrade Method | PC (software) | Online upgrade via mobile phone app |
| Operation Method | Button operation | Mobile app |
| Connection Method | Wired (cable) | Bluetooth |
| Special Function | — | Oil / Service Light Reset |
| Supported Languages | 8 | 13 |
| OBDII Diagnostics | Yes | Yes |
| Full System Diagnostics | No | Yes |
| AUTO SCAN | No | Trouble scanning |
| Read ECU Information | Yes | No |
| Read / Clear Trouble Codes | Yes | Yes |
| View Live Data | Yes (limited) | No |
| Read Freeze Frame | Yes | No |
| Bidirectional Control | Component test | Smog check, component test, battery test, etc. |
| More Features | Voltage measurement; Fault code query; Playback; Print | In-depth check; Smart dash; Trip management |
| Applicable to | Individuals; repair shops; annual inspection workshops | DIYers; annual inspection |
Advanced Comparison: Vident iSmartDiag510 vs iSmartDiag510 Pro vs XTOOL A30D
| Feature | Vident iSmartDiag510 | Vident iSmartDiag510 Pro | XTOOL A30D |
|---|---|---|---|
| Price | $79 | $99 | $89 |
| Upgrade Period | Lifetime free | Lifetime free | Lifetime free |
| Upgrade Method | Online upgrade via mobile/tablet app | Online upgrade via mobile/tablet app | Online upgrade via mobile app |
| Operation Method | Mobile phones / tablets (Android, iOS) | Mobile phones / tablets (Android, iOS) | Mobile app |
| Connection Method | Bluetooth | Bluetooth | Bluetooth |
| Special Function | 13+ functions | 28+ functions | 19+ functions |
| Supported Languages | 17 | 17 | 23 |
| OBDII Diagnostics | Yes | Yes | Yes |
| Full System Diagnostics | Yes | Yes | Yes |
| AUTO SCAN | Yes | Yes | Yes |
| Read ECU Information | Yes | Yes | Yes |
| Read / Clear Trouble Codes | Yes | Yes | Yes |
| View Live Data | Yes | Yes | Yes |
| Read Freeze Frame | Yes | Yes | Yes |
| Bidirectional Control | Yes | Yes | Yes |
| CAN FD | Yes | Yes | Yes |
| DOIP | Yes | Yes | No |
| FCA | No | No | Yes |
| Applicable to | Individuals; Repair Shops; Rescue Shops | Individuals; Repair Shops | Individual car owners; repair shops; rescue teams |
FAQ
Buying Recommendations
- Tight budget & basic needs: Vdiagtool VD30Pro ($35.99)
- Wireless & Oil Reset: XTOOL AD20 PRO ($39.99)
- Extra maintenance/service functions: Vident iSmartDiag510 ($79) / 510 Pro ($99)
- Wireless full-system diagnostics: XTOOL A30D ($89)
