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Redmi Note 9

android-based smartphone manufactured by Xiaomi Inc

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 12, 2026
Entity authorityQ85796390
Source-derived summary

The Redmi Note 9 is a line of Android-based mid-range smartphones as part of the Redmi Note series by Redmi, a sub-brand of Xiaomi Inc.

The smartphone was succeeded by Redmi Note 10, an upgraded version released in March 2021.

Specifications

Hardware

Design

Note 9

The Note 9/10X 4G measures 162.3 mm × 72.2 mm × 8.9 mm (6.39 in × 2.84 in × 0.35 in) and weighs 199 grams (7.0 oz) which is heavier than usual for a 6.53-inch phone. The curved (slippery) back feels like glass, the front is made of Gorilla Glass 5, and the frame is made of plastic. The bottom half is heavier to prevent the device from tipping over and falling. The bezels and the camera bump are small.

In addition to the 6.53 in (166 mm) touchscreen, it has a power button and a volume up/down button located on the right side, an IR blaster on the top, and a USB-C port, a downward-firing speaker, and a headphone jack on the bottom. It has a hole punch in the left corner and a fingerprint scanner in the rear.

The Note 9/10X 4G has three colour options: Forest Green, Midnight Grey, and Polar White.

Note 9S/Pro/10 Lite (India)

The Note 9S/Pro/10 Lite (India) measures 165.8 mm × 76.7 mm × 8.8 mm (6.53 in × 3.02 in × 0.35 in) and weighs 209 grams (7.4 oz).

Editorial summary

Begin with the source’s own compact description: “Redmi Note 9” is android-based smartphone manufactured by Xiaomi Inc. The dossier treats that line as a proposition to test through Redmi, Note and android-based, not as a finished interpretation.

Editorial reviewA practical starting point whose main value is the path it opens into stronger specialist and primary sources. The current lead gives the account dated anchors—2021—that can be checked directly. The linked authority record independently contributes the date 2020-05. For this dossier, Redmi, Note and android-based is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “android-based smartphone manufactured by Xiaomi Inc” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

Evidence profile

Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Sep 12, 2026. The linked authority identifier is Q85796390. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2021.

Critical limits

Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “Redmi Note 9”, its source revision and the description used here.
  2. Expand the search: follow Redmi Note 9 primary sources, Redmi Note 9 archive and Redmi research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Redmi Note 9”?
  2. Which institution is responsible for the underlying evidence?
  3. Which cited source is closest to the event, object or claim?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from Redmi Note 9” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.