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About the scoresThe scores are calculated mechanically by applying the criteria table at the end of the page to figures published on the manufacturers' official pages and manuals (and on retail or comparison pages where an official figure was not available). We call it the "Spec Score".

Spec Score #4Stand type (Qi)
Best for keeping costs low while trying out set-and-charge convenience
2.60★★★☆☆Spec Score (out of 5)
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Score Breakdown
Specs
| Standard | Qi certified (works with Qi-compatible devices) |
|---|---|
| Max output | 10 W (with a QC 2.0/3.0 charger, for devices such as Samsung Galaxy S9, S8, Note 9, Note 8) / 5 W for iPhones and others (with a 5V/2A charger) |
| Input | 5V-2A / 9V-2A |
| Coils / orientation | Two built-in charging coils (works upright or on its side) |
| Devices at once | 1 |
| Included | 0.9 m Micro USB cable (AC adapter sold separately) |
| Cases | Remove cases about 5 mm or thicker, metal or magnetic cases, and credit cards before charging |
| Size / weight | about 114 × 80 × 68 mm, about 108 g |
| Warranty | 18 months (+6 months after registering with Anker) |
| Release | May 2020 |
🙂 Good points
- The lightest of the four (about 108 g)
- Two coils, so it works upright or on its side
- Qi certified
🙁 Things to note
- The 10 W maximum is for some devices such as Samsung phones with a QC-compatible charger; iPhones and others get 5 W (per the maker)
- No charger is included, and the cable is Micro USB (0.9 m)
Sources
Anker Japan official product page
Scores are calculated only from specs published on official and retail pages.
