Redmi 9
{{Short description|Smartphone model by Redmi}}{{Distinguish|text=Redmi 9 for the Indian market}}{{Infobox mobile phone
| name = Redmi 9
(Redmi 9 Prime in India)
| image = Back_of_Redmi_9_sample_in_China_20210307.jpg
| codename = 9/Prime: lancelot
9 (NFC): galahad
| series = Redmi
| modelnumber = 9: M2004J19G, M2004J19C
9 Prime: M2004J19PI
| released = {{Start date and age|2020|06|10}}
| predecessor = Redmi 8
| successor = Redmi 10
| related = Redmi 9A
Redmi 9C
Redmi 9T
| type = Smartphone
| form = Slate
| size = {{convert|163.3 x 77 x 9.1|mm|in|abbr=on}}
| weight = {{convert|198|g|oz|abbr=on}}
| os = Android 10 based on MIUI 11, upgradeable to Android 12 based on MIUI 13
| cpu = Mediatek MT6769V/CU Helio G80 (12 nm)
| gpu = Mali-G52 MC2
| memory = 3 GB, 4 GB or 6 GB LPDDR4X
| storage = 32 GB, 64 GB, or 128 GB eMMC 5.1
| memory_card = Dedicated Slot, microSDXC, upto 256 GB
| sim = Dual Nano-SIM, DSDS
| battery = Li-Po 5020 mAh, non-removable
| charging = 18 W Fast Charging (9V@2A)
| display = 6.53 inches, 1080 × 2340 pixels, 19.5:9 ratio (~395 ppi density), Corning Gorilla Glass 3
| rear_camera = 13 MP, f/2.2, 28 mm (wide), 1/3.1", 1.12 μm, PDAF
8 MP, f/2.2, 118˚ (ultrawide), 1/4.0", 1.12 μm
5 MP, f/2.4, (macro)
2 MP, f/2.4, (depth)
| front_camera = 8 MP, f/2.0, 27 mm (wide), 1/4.0", 1.12 μm
| connectivity = 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth 5.0
GPS, GLONASS, BDS
NFC (Global Only)
Infrared Blaster
Wireless FM radio (no wired headphones required)
USB Type-C 2.0, OTG
| status = Discontinued
| website = https://www.mi.com/in/redmi-9-prime/
| references = https://www.mi.com/uk/redmi-9/
}}
Redmi 9 was released in June 2020 globally and offers a 6.5-inch FHD+ display (2340x1080p resolution) with 89% screen-to-body ratio.{{Cite web |title=Xiaomi Redmi 9 - Full phone specifications |url=https://www.gsmarena.com/xiaomi_redmi_9-10233.php |access-date=2024-05-19 |website=www.gsmarena.com}} The handset is powered by MediaTek Helio G80 coupled with up to 6 GB RAM and 128 GB internal storage.{{Cite news |date=2020-07-16 |title=Xiaomi announces global variants of Redmi 9, Redmi 9C and Redmi 9A: Price, specs and more |url=https://timesofindia.indiatimes.com/gadgets-news/xiaomi-launches-redmi-9-redmi-9c-and-redmi-9a-in-europe-price-specs-and-more/articleshow/76985216.cms |access-date=2024-05-19 |work=The Times of India |issn=0971-8257}}
For imaging duties, the Redmi 9 has a quad-camera setup of 13 MP+8 MP+5 MP+2 MP. On the front, there is an 8 MP sensor with f/2.0 aperture. Backed by a 5020 mAh battery, the handset offers 18 W fast charge support.{{Cite web |title=Redmi 9 Prime @₹9,999 - Prime Time All-rounder |url=https://www.mi.com/in/redmi-9-prime/ |access-date=2024-05-19 |website=Xiaomi in |language=en-IN}}{{Cite web |title=Xiaomi UK |url=https://www.mi.com/uk/redmi-9/ |access-date=2024-05-19 |website=www.mi.com}}
The same phone was released in India as Redmi 9 Prime in August 2020. This was first time since Redmi 3s Prime that the Prime moniker was used in Redmi series.{{Cite web |date=2020-08-04 |title=Redmi 9 Prime launched in India; here's everything you need to know |url=https://indianexpress.com/article/technology/mobile-tabs/redmi-9-prime-launched-specs-price-india-6538539/ |access-date=2024-05-19 |website=The Indian Express |language=en}} The phone is identical to Global Redmi 9 except it lacks an NFC chip.{{Cite web |title=Xiaomi Redmi 9 Prime - Full phone specifications |url=https://www.gsmarena.com/xiaomi_redmi_9_prime-10353.php |access-date=2024-05-19 |website=www.gsmarena.com}}
The phone was released with MIUI 11 based on Android 10 and was upgraded to Android 11 (MIUI 12){{Cite web |last=Lancaster |first=Marco |date=2020-11-26 |title=Redmi 9 Global variant is getting MIUI 12 update |url=https://www.gizchina.com/2020/11/26/redmi-9-global-variant-is-getting-miui-12-update/ |access-date=2024-05-19 |website=Gizchina.com |language=en-US}} and finally to MIUI 13 based on Android 12.{{Cite web |last=Abdullah |date=2022-11-15 |title=MIUI 13 update surprises another budget Xiaomi smartphone |url=https://www.gizchina.com/2022/11/15/miui-13-update-surprises-another-budget-xiaomi-smartphone/ |access-date=2024-05-19 |website=Gizchina.com |language=en-US}}{{Cite web |title=Xiaomi Community |url=https://new.c.mi.com/global/post/569090 |access-date=2024-05-19 |website=new.c.mi.com}}