AstroAI S1 Tire Inflator

Official product image from AstroAI (source). Not our photo.

AstroAI · Portable Tire Inflators

AstroAI S1 Tire Inflator review: 3.5/5 from the spec sheet

Compact 12 V plug-in tire inflator with a digital gauge and preset auto shut-off, rated to 150 PSI.

Manufacturer list price $32.99 Manufacturer list price as of Oct 16, 2026; Amazon price not shown. Source

Fits: Any vehicle with a 12 V socket; engine should be running; not for heavy-duty truck tires

View on AmazonASIN B08JSMLDKC

3.5 /5 Overall score
average of 5 criteria
  • Spec strength2.5

    150 PSI with auto shut-off, but AstroAI publishes no airflow or inflation time; the Avid Power lists 28 L/min and Fanttik lists 56 s for a 17-inch tire.

  • Build quality3.0

    No duty cycle, noise or temperature figures on AstroAI's page; the DeWalt and Craftsman carry 3-year warranties against this unit's 1 year.

  • Fit & compatibility4.0

    Runs from any 12 V socket with nothing to charge, unlike the battery-only Fanttik X8; not for big truck tires.

  • Warranty & support3.5

    1 year plus 1 with registration, vs 12 months flat on Fanttik and 3 years on DeWalt/Craftsman.

  • Value4.5

    $32.99 is the lowest list price here — a third of the Fanttik X8 APEX ($99.99).

Score is calculated from the manufacturer's published specifications. BaniCar has not handled this unit. Specs and availability change — verify on the listing.

Safety note: Never exceed the tire pressure printed on your door-jamb placard. Inflator PSI claims are the manufacturer's; verify with a separate gauge.

Verdict

A cheap, plug-in trunk tool that will top off car tires. If you want to know how fast it pumps before you buy, AstroAI does not say; spend more for a published spec sheet.

Pros & cons

Pros

  • Lowest list price in the category
  • Digital gauge with preset auto shut-off
  • No battery to keep charged — runs off the 12 V socket
  • Small and about 1.7 lb

Cons

  • Airflow, inflation time and duty cycle are not published
  • 12 V cord only — no battery or AC option
  • Standard warranty is 1 year
  • Not rated for heavy-duty truck tires

Best for

  • Budget trunk kits for sedans and crossovers
  • Drivers who only need occasional top-offs

Specifications (as published by AstroAI)

Max pressure150 PSI
Power12 V DC (cigarette lighter socket)
AirflowNot published by AstroAI
Auto shut-offYes, preset pressure with digital gauge
Inflation timeNot published (marketed as 'rapid inflation')
Duty cycleNot published
WeightAbout 1.7 lb (780 g) per AstroAI
Warranty1 year; AstroAI offers an additional year with product registration

Key specs: 150 PSI · 12 V plug-in · Digital gauge · Auto shut-off · ~1.7 lb · 1+1-yr warranty

Frequently asked questions

Does the engine need to be running?

Yes. Run the engine while inflating so the 12 V socket delivers full power and you do not drain the battery.

Will it inflate truck tires?

AstroAI does not rate this model for heavy-duty truck tires. For 33-inch and larger tires AstroAI sells dual-cylinder units.

How do I get the extra warranty year?

Register the product on astroai.com with your order number; AstroAI says this extends the included 1-year warranty by an additional year.

Compare with

View on Amazon

Opens Amazon.com in a new tab. Amazon price and availability are not shown here.

Sources

  1. AstroAI S1 product page (US) (accessed Oct 16, 2026)
  2. AstroAI 12 V digital inflator page (CA; weight) (accessed Oct 16, 2026)
  3. AstroAI warranty extension (accessed Oct 16, 2026)
  4. Amazon listing (ASIN only) (accessed Oct 16, 2026)
  5. AstroAI product page

Evidence type: published specs (no hands-on). Last updated Oct 16, 2026.