For car owners who want a basic, proven auto-shutoff pump for topping up. Pick something with a published warranty and spec sheet if that matters.
Amazon $35.97The EPAuto 12V Digital Tire Inflator is the better tire inflator overall, rated 3.4 to 3.1. The Slime 40047 Rugged Digital wins on features.
For car owners who want a cheap set-and-forget pump for topping up tires. Larger tires need a faster compressor.
Amazon $35.98Prices were last checked October 22, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Slime 40047 Rugged Digital for features (auto shutoff vs auto shutoff; runs 10 min at a time).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 12 V plug-in tire inflator; a clear win is highlighted. How we rank explains each one.
| Factor weight | EPAuto 12V Digital Tire Inflator | Slime 40047 Rugged Digital |
|---|---|---|
| Overall rating | 3.4/5 | 3.1/5 |
| Value 35% | 73 $35.97 | 73 $35.98 |
| Airflow 30% | 25 30 L/min (maker) | 17 26.9 L/min (maker) |
| Features 20% | 61 auto shutoff; runs 10 min at a time | 70 auto shutoff |
| Warranty 15% | 50 warranty not published (neutral score used) | 0 1-year warranty |
Specifications
| EPAuto 12V Digital Tire Inflator | Slime 40047 Rugged Digital | |
|---|---|---|
| Inflating | ||
| Airflow (maker) | 30 L/min | 26.9 L/min |
| Auto shutoff | Yes | Yes |
| Duty cycle | 10 min on | - |
| Power | ||
| Power | 12 V socket | 12 V socket |
| Power bank | No | No |
| Power cord | - | 10 ft |
| Build | ||
| Air hose | - | 24 in |
| Light | Yes | Yes |
| Warranty | - | 1 year |
