REDMI Note9T

REDMI Note9T

Black / 4GB+64GB
$142.57
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REDMI Note9T

REDMI Note9T

$142.57
颜色Black
内存和存储4GB+64GB

Redmi Note 9T – Key Highlights

Released in January 2021, the Redmi Note 9T is a budget 5G phone designed to bring next-generation connectivity to an affordable price point. It focuses on delivering solid performance, excellent battery life, and practical features that make it a compelling entry-level 5G option .


🚀 Performance: Capable 5G Power

The Redmi Note 9T is powered by the MediaTek Dimensity 800U chipset, built on a power-efficient 7nm process .



Component Specs
Processor MediaTek Dimensity 800U (7nm)
CPU Octa-core (2x Cortex-A76 @2.4GHz + 6x Cortex-A55 @2.0GHz)
GPU Mali-G57 MC3
RAM 4GB LPDDR4X
Storage 64GB (UFS 2.1) or 128GB (UFS 2.2), expandable via dedicated microSD up to 512GB

Benchmark scores:

  • PCMark Work 3.0: 8,839 points — solid productivity performance

  • 3DMark Sling Shot Extreme: 3,321 points

  • Geekbench 5: ~596 (single-core) / ~1,729 (multi-core) — faster than Google Pixel 4a

What this means for you:

  • Daily apps (social media, browsing, YouTube, messaging) — smooth and responsive

  • Gaming — Handles casual games well; 3DMark Wild Life runs at ~9 FPS, suitable for light to medium gaming

  • 5G connectivity — Supports 5G+5G dual SIM standby with broad band coverage (n1, n3, n5, n7, n8, n20, n28, n38, n41, n77, n78, n79)

"With a turn of pace that matches handsets that cost twice the price, it’s a great way to access the growing 5G network without spending excess cash." — IT Pro review


🔋 Battery Life: All-Day Power

The Redmon Note 9T packs a 5,000mAh high-cycle battery designed to last .



Usage Scenario Endurance
Video playback Up to 18 hours 10 minutes
PCMark battery test 13 hours 30 minutes
Standby Exceptional longevity

Real-world experience: Most users easily get a full day of heavy use, and light users can stretch to two full days on a single charge. The battery is rated for up to 800 charge cycles before noticeable degradation .

Charging: Supports 18W fast charging via USB-C. A 22.5W charger is included in the box . A 30-minute charge gets you to about 33% battery .


📱 Display: Sharp and Protected

  • 6.53-inch FHD+ Dot Display (2340 x 1080 resolution, 395 ppi) — sharp and detailed

  • 19.5:9 aspect ratio — great for watching videos and browsing

  • 450 nits typical brightness (502 nits measured in testing) — usable outdoors

  • Corning Gorilla Glass 5 protection — excellent durability at this price

  • TÜV Rheinland low blue light certification + Reading mode + Night mode — easy on the eyes

  • 60Hz refresh rate — standard for its time, smooth enough for daily use

Note: This is an IPS LCD panel, not AMOLED. Colors are good with 97.9% sRGB coverage in Standard mode, but color accuracy is average (Delta E of 3.62) . The Saturated mode improves this to 2.38 for more vibrant images .


📸 Camera: Versatile Triple Setup

Rear Camera System:



Lens Specs What It Does
Main 48MP (f/1.79, 0.8μm, 1/2" sensor, PDAF) Sharp, detailed shots in good light; 4-in-1 pixel binning to 1.6μm
Ultrawide 8MP (f/2.2, 118° FOV) Group photos and landscapes — performs quite well in good light
Macro 2MP (f/2.4, 4cm focus) Close-up shots of small objects

Front Camera: 13MP (f/2.25) for clear selfies and video calls

Camera features:

  • 4K video recording at 30fps (rear)

  • 1080p at 30/60fps, 720p at 30fps

  • Slow-motion: 120fps at 1080/720p

  • Night mode, HDR, Portrait mode, AI scene detection

Image quality analysis:

  • Daylight (5000 lux): Very good performance. The 48MP main camera delivers sharp images with good detail. The ultrawide camera performs "quite well" in the lab

  • Low light (200 lux): Still acceptable; slight resolution drop, but remains usable

  • Night (5 lux): Significant drop in quality. Noise and artifacts become noticeable; fine details are hard to recognize

  • 2x digital zoom: Not recommended — quality degrades significantly with soft details and increased noise

Verdict: Great for everyday snapshots, social media, and well-lit scenes. Low-light performance is adequate but not exceptional. Avoid digital zoom when possible .


🔊 Audio: Stereo Speakers and Headphone Jack

The Redmi Note 9T features dual stereo speakers — a first for the Redmi Note series .



Audio Feature Details
Speakers Stereo speakers with automatic left/right channel switching
3.5mm headphone jack ✅ Yes — 24-bit/192kHz audio support
FM Radio ✅ Yes (requires headphones)
Bluetooth audio Supports AAC / LDAC / LHDC via Bluetooth 5.1

Why this matters: Stereo speakers are rare at this price point, making media consumption and gaming much more immersive .


🛠️ Features You'll Actually Use



Feature Status
5G connectivity ✅ Yes — 5G+5G dual SIM standby
Side fingerprint sensor ✅ Yes — fast and convenient
Face unlock ✅ Yes — AI-powered
Dedicated 3-card slot ✅ Yes — 2 SIMs + microSD all at once (up to 512GB)
USB-C ✅ Yes — with 18W fast charging
NFC ✅ Yes — contactless payments supported
IR blaster ✅ Yes — use as universal remote for TV/AC
Stereo speakers ✅ Yes — dual speakers
3.5mm headphone jack ✅ Yes — with high-quality audio support
Water resistance ⚠️ P2i splash-proof nano-coating — handles light rain and spills, not full waterproofing
5GHz Wi-Fi ✅ Yes — Wi-Fi 5 (802.11 a/b/g/n/ac) dual-band
Gorilla Glass 5 ✅ Yes — front protection

Sensors: Distance sensor, Under-display ambient light sensor, Accelerometer, Gyroscope, Compass, Linear motor, IR blaster

Software: Ships with MIUI 12 based on Android 10 .


🎨 Build & Design

  • Textured polycarbonate back with anti-fingerprint finish

  • 2.5D glass front with Corning Gorilla Glass 5

  • 3D curved back for comfortable grip

  • Colors: Daybreak Purple, Nightfall Black

  • Dimensions: 161.9 x 77.3 x 9.05mm

  • Weight: 199g — solid but manageable

  • Camera design — Unique circular lens arrangement

Design note: The textured back resists fingerprints effectively, keeping the phone looking clean even after extended use .


📊 Quick Spec Summary



Spec Detail
Release date January 2021
Display 6.53" FHD+ IPS LCD, 60Hz, Gorilla Glass 5
Chipset MediaTek Dimensity 800U (7nm)
Rear camera 48MP main + 8MP ultrawide + 2MP macro
Front camera 13MP
Battery 5,000mAh with 18W fast charging
OS MIUI 12 (Android 10)
Security updates Ended — no longer receiving updates
Biometrics Side fingerprint + Face unlock
Connectivity 5G, Wi-Fi 5, Bluetooth 5.1, NFC, IR blaster
Audio Stereo speakers, 3.5mm jack
Card slot Dedicated 3-slot (2 SIMs + microSD)

⚠️ The Trade-offs (Be Honest With Yourself)

  • No ultrawide camera on some versions — Some regions got a 2MP depth sensor instead of the 8MP ultrawide. Check your local variant

  • 60Hz refresh rate — Standard for 2021, but feels dated compared to newer 90Hz/120Hz budget phones

  • LCD panel (not AMOLED) — No deep blacks, no always-on display

  • Low-light camera struggles — 5 lux performance drops significantly; fine details get lost

  • No 4K on front camera — Front camera maxes out at 1080p

  • Aging software — Stuck on Android 10 with MIUI 12; no major updates

  • No official water resistance rating — Only P2i nano-coating for splash protection

  • Mediocre color accuracy — Delta E of 3.62 in Standard mode is average

"It’s not flawless: the screen is nothing special and we’re miffed about the removal of the ultrawide camera, but you won’t find anything better at this price." — IT Pro review


🎯 Bottom Line: Who Is This For?

The Redmi Note 9T is a great choice for:

  • Budget-conscious 5G buyers — One of the most affordable ways to get 5G connectivity in 2021

  • First-time 5G users — Great entry point into next-gen networks without breaking the bank

  • Students on a tight budget — Reliable daily driver with good performance and battery life

  • Backup phone users — Cheap, durable, with all the essentials

  • IR blaster fans — Use it as a universal remote for your TV and AC

  • People who want stereo speakers — Rare at this price point

Skip it if:

  • You need great low-light photos — Night performance is mediocre

  • You want a high-refresh-rate display — 60Hz only

  • You care about software updates — No more Android version updates

  • You want AMOLED — This is an LCD panel

  • You need official water resistance — Only splash-proof coating

  • You can spend a bit more — Newer budget phones offer 90Hz displays and better cameras


📈 Verdict

The Redmi Note 9T is a budget 5G phone that punches above its weight:

 Does well: Powerful Dimensity 800U chipset, massive 5,000mAh battery, 18W fast charging, stereo speakers, dedicated 3-card slot, IR blaster, NFC, Gorilla Glass 5, USB-C, 4K video recording, good daylight camera performance

 Missing/weak: 60Hz refresh rate, LCD panel (not AMOLED), mediocre low-light camera, aging Android 10, no ultrawide in some regions, average color accuracy

Final thought: The Redmi Note 9T was a bargain 5G phone that delivered excellent value at launch . In 2025/2026, as a backup phone or for budget users who just need reliable 5G connectivity, good battery life, and decent daily performance, it still holds up. But for a daily driver, newer budget phones offer higher refresh rate displays, better cameras, and more modern software for a small price increase .

For modern buyers: If you can spend a little more, consider newer Redmi Note series phones with 90Hz/120Hz displays, AMOLED panels, and Android 13/14 out of the box .

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