2–3 on published sub-scores
Ryobi P737D 18V ONE+ Cordless Inflator vs VIAIR 88P
Both units have been through the same bench protocol. Ryobi P737D 18V ONE+ Cordless Inflator takes 2 of the five sub-scores we publish, VIAIR 88P takes 3. The specs and the trade-offs below are what actually separate them.
This page compiles the hands-on testing we have already published in the individual reviews. It adds no new measurements: every score, spec and figure below comes from the linked review.
Ryobi
Ryobi P737D 18V ONE+ Cordless Inflator
If you already own Ryobi ONE+ batteries, this is the most convenient inflator you can buy: digital preset, no cables, and enough runtime for a full set of tires on one 4.0Ah pack.
VIAIR
VIAIR 88P
The most honest 12V compressor for the money: fast, robust and reliable, as long as you accept a screw-on chuck and an analog gauge that reads about 2 PSI high.
Sub-scores from our reviews
The five dimensions behind every overall score on this site, taken verbatim from each review. A dash means the review does not publish that sub-score.
| Dimension | Ryobi P737D 18V ONE+ Cordless Inflator | VIAIR 88P |
|---|---|---|
| Inflation speed | 4.0 | 4.8 |
| Gauge accuracy | 4.8 | 4.2 |
| Build quality | 4.5 | 4.8 |
| Portability | 4.9 | 4.3 |
| Value | 4.5 | 4.6 |
| Overall score | 4.5 | 4.7 |
| Typical price | $49.00 (bare tool) | $64.99 |
Specifications both publish
| Spec | Ryobi P737D 18V ONE+ Cordless Inflator | VIAIR 88P |
|---|---|---|
| Maximum pressure | 150 PSI | 120 PSI |
| Air flow | 0.57 CFM at 0 PSI | 1.8 CFM at 0 PSI |
| Power source | Ryobi 18V ONE+ battery (bare tool, no battery included) | 12V DC, alligator battery clamps, 9 ft cord |
| Hose length | 20 in high-pressure hose | 16 ft |
| Duty cycle | Continuous use, thermally protected | 25 minutes at 30 PSI, 72°F |
| Weight | 3.6 lb (1.63 kg) with a 4.0Ah battery | 4.5 lb (2.04 kg) |
| Included adapters | Presta adapter, sports needle, high-flow nozzle | Presta valve adapter, sports needle, plastic storage case |
What you accept with each
Ryobi P737D 18V ONE+ Cordless Inflator
- Sold as a bare tool — battery and charger cost extra if you are not already in the ONE+ system
- Slower than a battery-clamp 12V compressor on a completely flat tire
- Bulkier than a 12V inflator and heavier in the hand at 3.6 lb with a 4.0Ah pack
- The 1/4 in hose has no standard quick-release, so aftermarket accessories need an adapter
VIAIR 88P
- No auto shut-off, so you must watch the gauge and stop it yourself
- Analog gauge read roughly 2 PSI high against our calibrated tester
- Loud at close range; roughly 88 dB at one meter
- Battery clamps mean opening the hood rather than plugging into a 12V socket
Which one, for whom
Choose the Ryobi P737D 18V ONE+ Cordless Inflator if you weight gauge accuracy, portability more heavily, and the lower price ($49.00 (bare tool) against $64.99) matters.
Choose the VIAIR 88P if you weight inflation speed, build quality, value more heavily.
Neither is a bad unit — both cleared the same protocol. Read the two full reviews before deciding: Ryobi P737D 18V ONE+ Cordless Inflator review and VIAIR 88P review.