Ryobi One+ P505 18V Lithium Ion Cordless 5-1/2" 4
Today
Typical price$72
Amazon: the cheapest today among the stores checked
Buy on AmazonRyobi One+ P505 18V Lithium Ion Cordless 5-1/2" 4 or Seesii 21V Power Drill Set?
One+ P505 18V Lithium Ion Cordless 5-1/2" 4 costs $8 less today, across the stores checked.
Ryobi One+ P505 18V Lithium Ion Cordless 5-1/2" 4 is $8 the cheaperSeesii 21V Power Drill Set is the cheaper
The comparison in detail
Seesii 21V Power Drill Set
Today
Typical price$80
Amazon: the cheapest today among the stores checked
Buy on AmazonAffiliate links: if you buy, the store pays us a commission at no cost to you.
Both prices over the last 30 days
First data point for one of the two: the chart appears as the days go by.
Still only a few days of data for both to read the trend; the chart fills in as the days go by.
Where is each one cheapest today?
Updated 06/11/2026
One+ P505 18V Lithium Ion Cordless 5-1/2" 4
- Amazon Lowest price$72Buy on Amazon
21V Power Drill Set
- Amazon Lowest price$80Buy on Amazon
Spec sheet side by side
| Item | One+ P505 18V Lithium Ion Cordless 5-1/2" 4 | 21V Power Drill Set |
|---|---|---|
| Specs | ||
| Type changes | Cordless | Other |
| General | ||
| Model changes | One+ P505 18V Lithium Ion Cordless 5-1/2" 4 | 21V Power Drill Set |
Other comparisons
One+ P505 18V Lithium Ion Cordless 5-1/2" 4 orBlack+Decker BCRTA601I Cordless Furniture Assembly Tool / Screwdriver$70Compare
21V Power Drill Set orBlack+Decker 20V MAX* POWERCONNECT 5-1/2 in. Cordless Circular Saw$81Compare
One+ P505 18V Lithium Ion Cordless 5-1/2" 4 orDewalt 4V Cordless Screwdriver 15 PC Set (DWHT66719)$74Compare- 21V Power Drill Set orBlack+Decker BCRTA601I Cordless Furniture Assembly Tool / Screwdriver$70Compare
21V Power Drill Set orBosch HA1032 SDS-max to 3 Jaw Chuck Adapter$83Compare
21V Power Drill Set orCraftsman V20 Cordless 3/8 in. Drill & Driver Kit (CMCD600D1)$81Compare
See more 1 comparison
How we choose
Source: Catalog of partner stores, checked on 06/11/2026.
Lowest price seen for the product in the stores we read, on the day it was read, before sales tax. The model is the brand plus the name of the tool; the versions go in the table. The price range, the median and the position use only models with a score; the price comparison looks at models whose score is within 0.5 points.
The spec score doesn’t measure durability or durability, and the strong or weak point reading is just a comparison of numbers, not a buying recommendation.