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