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Our Verdict
Analysis
Xiaomi 15 Ultra has the bigger display.
Overall Winner
Xiaomi 15 Ultra
Display Winner
Xiaomi 15 Ultra
Performance Winner
Tie
Camera Winner
Tie
Battery Winner
Tie
Value Winner
Tie
Specifications Comparison
| Feature | Xiaomi Redmi Note 9T | Xiaomi 15 Ultra |
|---|---|---|
| Display size (in) | 6.53 | 6.73 |
| Charging (W) | 18 | 90 |
| Main camera (MP) | 48.00 | 50.00 |
| Selfie (MP) | 13.00 | 32.00 |
| Weight (g) | 199 | 226 |
| Thickness (mm) | 9.10 | 9.35 |
| Chipset | Mediatek Dimensity 800U (7 nm) | Snapdragon 8 Elite |
| OS | Android 10, MIUI 12 | Android 15, HyperOS 2 |
Pros & Cons
Xiaomi Redmi Note 9T
Xiaomi 15 Ultra
- Outstanding camera versatility
- Fast wired and wireless charging
- Bright display
- Heavy
- Software still polishing animations
- Limited availability in some regions
Every Spec, Side by Side
Specification
Xiaomi
Xiaomi Redmi Note 9T
Xiaomi
Xiaomi 15 Ultra
Battery 3 specs
Type
Li-Po 5000 mAh
Market-dependent versions:· Si/C Li-Ion 5410 mAh - Global· Si/C Li-Ion 6000 mAh - China
Charging
18W wired, 33% in 30 min
90W wired, 80W wireless
Capacity
—
5410 mAh
Body 5 specs
Dimensions
161.2 x 77.3 x 9.1 mm (6.35 x 3.04 x 0.36 in)
161.3 x 75.3 x 9.35 mm
Weight
199 g (7.02 oz)
226 g
Build
Glass front (Gorilla Glass 5), plastic back, plastic frame
Glass front, glass-fiber reinforced plastic back or silicone polymer back (eco leather), aluminum frame
SIM
Nano-SIM + Nano-SIM
· Nano-SIM + Nano-SIM· Nano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time)
Water-repellent coating
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min)
Aerospace-grade glass fiber
Connectivity 8 specs
WLAN
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Wi-Fi 802.11 a/b/g/n/ac/6e/7, dual-band or tri-band, Wi-Fi Direct
Bluetooth
5.1, A2DP, LE
6.0, A2DP, LE, aptX HD, aptX Adaptive, LHDC 5
Positioning
GPS, GLONASS, GALILEO, BDS
GPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5), GLONASS
NFC
Yes
Yes
Infrared port
Yes
Yes
Radio
FM radio, recording
No
USB
USB Type-C 2.0
USB Type-C 3.2 Gen 2, DisplayPort, OTG
5G
—
Yes
Display 4 specs
Type
IPS LCD, 450 nits (typ)
LTPO AMOLED
Size
6.53 inches, 104.7 cm2 (~84.0% screen-to-body ratio)
6.73 inches
Resolution
1080 x 2340 pixels, 19.5:9 ratio (~395 ppi density)
1440 x 3200 pixels
Protection
Corning Gorilla Glass 5
Xiaomi Shield Glass 2.0, Mohs level 6
Features 2 specs
Sensors
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
Fingerprint (under display, ultrasonic), accelerometer, proximity, gyro, compass, barometer
—
Two-way satellite communication (China model only)
Launch 2 specs
Announced
2021, January 08
2025, February 27
Status
Available. Released 2021, January 18
Available. Released 2025, February 27
Main Camera 4 specs
Triple
48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF
2 MP (macro)
Auxiliary lens
—
Features
LED flash, HDR, panorama
Laser AF, color spectrum sensor, Leica lenses, Dual-LED flash, HDR, panorama, 67mm filter ring holder (optional)
Video
4K@30fps, 1080p@30/60fps
8K@30fps, 4K@30/60/120fps, 1080p@30/60/120/240/480/960/1920fps, gyro-EIS, Dolby Vision HDR 10-bit rec. (4K@60fps, 1080p)
Quad
—
50 MP + 50 MP + 200 MP + 50 MP
Memory 5 specs
Card slot
microSDXC (dedicated slot)
No
Internal
64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM
256GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM
UFS 2.1 - 64GB
UFS 2.2 - 128GB
UFS 4.1
RAM
—
16GB
Storage
—
512GB
Misc 5 specs
Colors
Nightfall Black, Daybreak Purple
Black, White, Silver Chrome, Green
Models
M2007J22G, J22
25010PN30G
SAR
1.07 W/kg (head) 1.05 W/kg (body)
—
SAR EU
0.59 W/kg (head) 0.94 W/kg (body)
1.00 W/kg (head) 1.00 W/kg (body)
Price
About 130 EUR
$ 693.75 / £ 1,295.00 / € 812.34
Network 7 specs
Technology
GSM / HSPA / LTE / 5G
GSM / HSPA / LTE / 5G
2G bands
GSM 850 / 900 / 1800 / 1900
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 32, 38, 40, 41, 42
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 42, 48, 66, 71 - International
5G bands
1, 3, 5, 7, 8, 20, 28, 38, 41, 77, 78, 79 SA/NSA/Sub6
1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 48, 66, 71, 75, 77, 78, 79 SA/NSA - International
Speed
HSPA, LTE, 5G
HSPA, LTE, 5G
—
1, 2, 3, 5, 7, 8, 12, 20, 26, 28, 38, 40, 41, 48, 66, 77, 78, 79, 80, 81, 83, 84, 89 SA/NSA - China
Our Tests 6 specs
Performance
AnTuTu: 288732 (v8)
GeekBench: 1775 (v5.1)
—
Display
1226:1 contrast ratio, 471 nits max brightness (measured)
—
Camera
Photo / Video
—
Loudspeaker
-26.3 LUFS (Good)
-24.1 LUFS (Very good)
Battery (old)
Endurance rating 118h
—
Battery
—
Active use score 16:13h
Platform 4 specs
OS
Android 10, MIUI 12
Android 15, HyperOS 2
Chipset
Mediatek Dimensity 800U (7 nm)
Snapdragon 8 Elite
CPU
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
Octa-core (2x4.32 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)
GPU
Mali-G57 MC3
Adreno 830
Selfie Camera 3 specs
Single
13 MP, f/2.3, 29mm (standard), 1/3.1", 1.12µm
32 MP
Video
1080p@30fps
4K@30/60fps, 1080p@30/60fps, gyro-EIS
Features
—
HDR, panorama
Sound 3 specs
Loudspeaker
Yes, with stereo speakers
Yes, with stereo speakers
3.5mm jack
Yes
No
24-bit/192kHz Hi-Res audio
24-bit/192kHz Hi-Res & Hi-Res Wireless audio
Qualcomm XPAN (24-bit/96kHz audio)
Eu Label 4 specs
Energy
—
Class A
Battery
—
58:58h endurance, 1000 cycles
Free fall
—
Class C (90 falls)
Repairability
—
Class C
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Common Questions
Which phone is the best in this comparison?
Xiaomi 15 Ultra has the bigger display.
How are the comparison winners decided?
We compare measurable specs (display size, battery capacity, RAM, charging, weight) and price (USD). When two phones tie or data is missing we mark the category "Depends".
Which is more affordable?
The cheaper option is shown as the value winner above. Prices are USD and may vary by region or retailer.