Travel Log StickerDr. Ratio
Dr. Ratio is a 4★ material in Honkai: Star Rail — see how to get it, its use, and related items right below on this page.
Dr. Ratio is a material ★4 in Honkai: Star Rail. This item is not currently used to level up any character or Light Cone.
Last updated: 30/07/2026
The figures on this page come directly from gamevika's internal game data store (counted/read straight from the real records), not an estimate or copy from elsewhere.
Description
Digital stickers that can be used to decorate the pages of the Dreamtour Handbook. They come in many different styles.
Stats
| Rarity | ★★★★ |
| Type | Travel Log Sticker |
Official names in every language
| Tiếng Việt | Dr. Ratio |
| English | Dr. Ratio |
| 日本語 | Dr.レイシオ |
| 한국어 | Dr. 레이시오 |
| 繁體中文 | 真理醫生 |
Same-type items
FAQ
What is Dr. Ratio?
Digital stickers that can be used to decorate the pages of the Dreamtour Handbook. They come in many different styles.
Where do you get Dr. Ratio?
Official drop/source data for Dr. Ratio isn't published yet — check back after the next data sync.
What type of item is Dr. Ratio?
Dr. Ratio is a 4★ material in Honkai: Star Rail, in the “Travel Log Sticker” category.
What is Dr. Ratio used for?
Dr. Ratio currently isn't listed as required by any character ascension, Light Cone ascension, or crafting recipe in official data.