Ulefone Note 21 vs Xiaomi 17
Ulefone
Note 21
Xiaomi
17
At a glance
- Brand
- Ulefone
- Xiaomi
- Release date
- January 2025, 1 years 5 months ago
- September 2025, 9 months ago
- AnTuTu
- 251.000 Antutu v10 Overall performance better than 59% of devices
- 4.027.702 Antutu v11 Overall performance better than 99% of devices
Display
- Size
- 6.56"
- 6.31"
- Resolution
- 720 x 1612 px HD+
- 1200 x 2656 px QHD
- Type
- LCD IPS
- AMOLED
- Density
- 269 ppi Medium Density
- 462 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, 1-120 Hz refresh rate, TÜV Rheinland Flicker-free Certified, 2160 Hz PWM, TÜV Low Blue Light, Variable refresh rate 1 Hz, Touch sampling rate 300 Hz, Peak brightness - 3500 cd/m², Always-On Display, TÜV Rheinland Eye Comfort Certification, HDR10+, DCI-P3, DC dimming, 12 Bits panel (10-bit +2-bit FRC), Dolby Vision, Scratch resistant, Dragontrail glass, Xiaomi Longjing Glass, Capacitive, Multi-touch, Frameless, LTPO (Low Temperature PolySilicon oxide)
Performance
- Chipset
- Unisoc Tiger T606
- Qualcomm Snapdragon 8 Elite Gen 5
- CPU
- 2x1.6 GHz Cortex A75 + 6x1.6 GHz Cortex A55
- 2x4.61 GHz ARM + 6x3.63 GHz ARM
- CPU type
- Octa-Core
- Octa-Core
- Process
- 12 nm
- 3 nm
- Frequency
- 1.6 GHz
- 4.61 GHz
- GPU
- ARM Mali-G57
- Adreno 840 1.2 GHz
- RAM
- 4 GB
- 12 GB
- RAM type
- LPDDR4X RAM
- RAM LPDDR5X
- 64-bit
- Yes
- Yes
Rear camera
- Resolution
- 13 Mpx
- 50 Mpx
- Aperture
- ƒ/ 2.2
- ƒ/ 1.69
- Sensor
- Samsung S5K3L6
- Omnivision 950 LightHunter
- Pixel size
- 1.12 µm
- 1.20 µm
- Sensor size
- 1/3.1"
- 1/1.3"
- Flash
- LED
- Dual LED
- Optical stabilization
- No
- Yes
- Slow motion
- No, 30 fps
- Yes, 1920 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
- Tracking AF, Flicker sensor, Noise reduction, Time-Lapse, 4K Video, 8K Video, Digital zoom, Optical zoom, Triple camera, Digital image stabilization, Optical Stabilization (OIS), Ultra stable video, Autofocus, Touch focus, Continuous autofocus, Manual focus, Phase detection autofocus (PDAF), Laser autofocus (LAF), Continuous shooting, Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer, Night Mode, RAW 14 bits
Front camera
- Resolution
- 8 Mpx
- 50 Mpx
- Aperture
- Unknow
- ƒ/ 2.2
- Sensor
- —
- Omnivision OV50M
- Pixel size
- —
- 0.61 µm
Battery
- Capacity
- 5000 mAh
- 6330 mAh
- Type
- Li-Polymer
- Si-Carbon Li-Ion
- Fast charge
- Yes , 10.0W
- Yes , 100.0W
- Charge cycles
- 1000 cycles
- 1000 cycles
- Runtime
- ~ 47h
- ~ 64h
- Features
- Non-removable
- Wireless charging, Reverse charging, Non-removable
- Wireless charging
- —
- Wireless charging 50W
Storage
- Capacity
- 128 GB
- 256 GB
- SD slot
- Yes , Slot for SD or second SIM card
- No
- Type
- —
- UFS Storage 4.1
Body
- Dimensions
- 75.2 mm 163.2 mm 9.2 mm Print 3D Model
- 71.8 mm 151.1 mm 8.1 mm Print 3D Model
- Weight
- 196 g
- 191 g
- Materials
- Plastic
- Aluminium alloy , Ceramics , Titanium
- Colors
- Black Violet
- Black Blue Pink Green
- 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 %
- 88 %
- Water/dust resistance
- —
- IP68, IP69
Software
- Operating system
- Android 14 Upside-down cake Android 14
- Android 16 HyperOS 3.X (Android 16)
- Google services
- With Google Mobile Services
- With Google Mobile Services
- Updates
- —
- OS updates: 5 years, Security updates: 5 years
Connectivity
- SIM
- Dual SIM Dual Standby (Nano SIM + Nano SIM)
- Dual SIM Dual Standby (Nano SIM / eSIM + Nano SIM / eSIM)
- Bluetooth
- Bluetooth 5.0 LELow energy consumption
- Bluetooth 6.0 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), APT-x, LDAC, SBC, AAC, Apt-x Adaptive
- 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 7 (802.11be)
- 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, QZSS, GPS (L1+L5), GLONASS (L1), BeiDou (B1), Galileo (E1+E5a), BeiDou (B2), NavIC System, QZSS (L1 + L5)
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), B25 (1900+), 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), B71 (600)
- 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), n12 (700), n20 (800), n25 (1900), n26 (850), n28b (700), n28a (700), n38 (2600), n40 (2300), n41 (2500), n48 (3500), n66 (1700), n71 (600), n75 (1500), n77 (3700), n78 (3500), n84 (2100)
Sensors & security
- Fingerprint
- Yes, on the side
- Yes, in screen
- Accelerometer
- Yes
- Yes
- Proximity
- Yes
- Yes
- Light sensor
- Yes
- Yes
- Cooling system
- No
- Yes
- Gyroscope
- —
- Yes
- Barometer
- —
- Yes
- Audio
- —
- Dolby Atmos, Hi-Res Audio, Stereo Speakers, 4 microphones
