Ulefone Note 21 vs Xiaomi Redmi Note 15 Pro+
Ulefone
Note 21
Xiaomi
Redmi Note 15 Pro+
At a glance
- Brand
- Ulefone
- Xiaomi
- Release date
- January 2025, 1 years 5 months ago
- August 2025, 10 months ago
- AnTuTu
- 251.000 Antutu v10 Overall performance better than 59% of devices
- 875.000 Antutu v10 Overall performance better than 82% of devices
Display
- Size
- 6.56"
- 6.83"
- Resolution
- 720 x 1612 px HD+
- 1280 x 2772 px FHD+
- Type
- LCD IPS
- AMOLED
- Density
- 269 ppi Medium Density
- 447 ppi Very high density
- Aspect ratio
- 20:9
- 20:9
- Features
- Water Drop Notch, Refresh rate 90 Hz, Brightnes 450 cd/m² (typ), 2.5D curved glass screen, Capacitive, Multi-touch, Frameless
- Hole-punch Notch, SGS Certified, 3840 Hz PWM, Refresh rate 120 Hz, Touch sampling rate 240 Hz, Touch sampling rate 480 Hz, Max brightness HBM - 1200 cd/m², Peak brightness - 3200 cd/m², 5000000:1 contrast ratio, TÜV Rheinland Eye Comfort Certification, HDR10+, DCI-P3, 12 Bits panel (10-bit +2-bit FRC), Scratch resistant, Dragontrail glass, Corning Gorilla Glass Victus 2, Capacitive, Multi-touch, Frameless
Performance
- Chipset
- Unisoc Tiger T606
- Qualcomm Snapdragon 7s Gen4
- CPU
- 2x1.6 GHz Cortex A75 + 6x1.6 GHz Cortex A55
- 1x2.7 GHz Kryo + 3x2.4 GHz P Cores +4x1.6 GHz E Cores
- CPU type
- Octa-Core
- Octa-Core
- Process
- 12 nm
- 4 nm
- Frequency
- 1.6 GHz
- 2.7 GHz
- GPU
- ARM Mali-G57
- Qualcomm Adreno
- RAM
- 4 GB
- 8 GB
- RAM type
- LPDDR4X RAM
- LPDDR4X RAM
- 64-bit
- Yes
- Yes
Rear camera
- Resolution
- 13 Mpx
- 200 Mpx
- Aperture
- ƒ/ 2.2
- ƒ/ 1.7
- Sensor
- Samsung S5K3L6
- Samsung S5KHP3SP
- Pixel size
- 1.12 µm
- 1.00 µm
- Sensor size
- 1/3.1"
- 1/1.4"
- Flash
- LED
- LED
- Optical stabilization
- No
- Yes
- Slow motion
- No, 30 fps
- Yes, 120 fps
- Features
- Digital zoom, Dual camera, Digital image stabilization, Autofocus, Touch focus, Continuous shooting, Geotagging, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer
- 4K Video, Digital zoom, Optical zoom, Triple camera, Digital image stabilization, Optical Stabilization (OIS), Ultra stable video, Autofocus, Touch focus, Manual focus, Continuous shooting, Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer, RAW, Front Flash, Night Mode
Front camera
- Resolution
- 8 Mpx
- 32 Mpx
- Aperture
- Unknow
- ƒ/ 2.2
- Sensor
- —
- Omnivision OV32D
- Pixel size
- —
- 0.61 µm
Battery
- Capacity
- 5000 mAh
- 6500 mAh
- Type
- Li-Polymer
- Si-Carbon Li-Ion
- Fast charge
- Yes , 10.0W
- Yes , 100.0W
- Charge cycles
- 1000 cycles
- 1000 cycles
- Runtime
- ~ 47h
- ~ 61h
- Features
- Non-removable
- Reverse charging, Non-removable
Storage
- Capacity
- 128 GB
- 256 GB
- SD slot
- Yes , Slot for SD or second SIM card
- No
- Type
- —
- UFS Storage 2.2
Body
- Dimensions
- 75.2 mm 163.2 mm 9.2 mm Print 3D Model
- 78.3 mm 163.3 mm 7.9 mm Print 3D Model
- Weight
- 196 g
- 207 g
- Materials
- Plastic
- Plastic
- Colors
- Black Violet
- Black White Blue Brown
- Drop resistance
- Class A B C D E 113 drops without defects
- Class A B C D E 270 drops without defects
- Repairability
- Class A B C D E
- Class A B C D E
- Usable surface
- 84 %
- 89 %
- Water/dust resistance
- —
- IP68, Splash resistant
Software
- Operating system
- Android 14 Upside-down cake Android 14
- Android 15 HyperOS 2.X (Android 15)
- Google services
- With Google Mobile Services
- With Google Mobile Services
- Updates
- —
- OS updates: 5 years
Connectivity
- SIM
- Dual SIM Dual Standby (Nano SIM + Nano SIM)
- Dual SIM Dual Standby (Nano SIM + Nano SIM / eSIM)
- Bluetooth
- Bluetooth 5.0 LELow energy consumption
- Bluetooth 5.4 LELow energy consumption
- Bluetooth profiles
- A2DP (Advanced Audio Distribution Profile), HID (Human Interface Profile), LE (Low Energy)
- A2DP (Advanced Audio Distribution Profile), LE (Low Energy), LDAC, AAC
- Wi-Fi
- 802.11a , 802.11b , 802.11g , 802.11n , 802.11n 5GHz , 802.11ac
- 802.11a , 802.11b , 802.11g , 802.11n , 802.11n 5GHz , 802.11ac, WiFi 6 (802.11ax) , WiFi 6E
- Wi-Fi features
- Dual band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display
- Dual band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display, Wi-Fi MiMO
- USB
- USB Type-C
- USB Type-C
- USB features
- Charging, OTG
- Charging, OTG
- Navigation
- GPS, A-GPS, GLONASS, Beidou, Galileo
- GPS, A-GPS, GLONASS, Beidou, Galileo, GPS (L1+L5), BeiDou (B1)
Networks
- 4G LTE
- B1 (2100), B2 (1900), B3 (1800), B4 (1700/2100 AWS 1), B5 (850), B7 (2600), B8 (900), B12 (700), B17 (700), B19 (800), B20 (800), B26 (850), B28b (700), B28a (700), B38 (TDD 2600), B40 (TDD 2300), B41 (TDD 2500), B66 (1700/2100)
- B1 (2100), B2 (1900), B3 (1800), B4 (1700/2100 AWS 1), B5 (850), B7 (2600), B8 (900), B12 (700), B13 (700), B17 (700), B18 (800), B19 (800), B20 (800), B26 (850), B28b (700), B28a (700), B32 (1500), B38 (TDD 2600), B39 (TDD 1900), B40 (TDD 2300), B41 (TDD 2500), B42 (TDD 3500), B48 (TDD 3600), B66 (1700/2100)
- 3G
- B1 (2100), B2 (1900), B5 (850), B8 (900)
- B1 (2100), B2 (1900), B4 (1700/2100 AWS A-F), B5 (850), B6 (800), B8 (900), B19 (800)
- 2G
- B2 (1900), B3 (1800), B5 (850), B8 (900)
- B2 (1900), B3 (1800), B5 (850), B8 (900)
- 5G
- —
- n1 (2100), n2 (1900 PCS), n3 (1800), n5 (850), n7 (2600), n8 (900), n20 (800), n26 (850), n28b (700), n28a (700), n38 (2600), n40 (2300), n41 (2500), n48 (3500), n66 (1700), n77 (3700), n78 (3500)
Sensors & security
- Fingerprint
- Yes, on the side
- Yes, in screen
- Accelerometer
- Yes
- Yes
- Proximity
- Yes
- —
- Light sensor
- Yes
- Yes
- Cooling system
- No
- Yes
- Audio
- —
- Dolby Atmos, Stereo Speakers
