Poco X6 vs Ulefone Note 21

At a glance

Brand: POCO; Ulefone
Release date: January 2024, 2 years 5 months ago; January 2025, 1 years 5 months ago
AnTuTu: 603.400 Antutu v10 Overall performance better than 76% of devices; 251.000 Antutu v10 Overall performance better than 59% of devices

Size: 6.67"; 6.56"
Resolution: 1220 x 2712 px QHD; 720 x 1612 px HD+
Type: AMOLED; LCD IPS
Density: 446 ppi Very high density; 269 ppi Medium Density
Aspect ratio: 20:9; 20:9
Features: Hole-punch Notch, 1920 Hz PWM, TUV Rheinland Low Blue Light, Refresh rate 120 Hz, Peak brightness - 1800 cd/m², Max brightness HBM - 1200 cd/m², 5000000:1 contrast ratio, TÜV Rheinland Eye Comfort Certification, DCI-P3, 12 Bits panel, Dolby Vision, Scratch resistant, AGC glass, Corning Gorilla Glass Victus, Capacitive, Multi-touch, Frameless; Water Drop Notch, Refresh rate 90 Hz, Brightnes 450 cd/m² (typ), 2.5D curved glass screen, Capacitive, Multi-touch, Frameless

Chipset: Qualcomm Snapdragon 7s Gen2 (SM-7435AB); Unisoc Tiger T606
CPU: 4x2.4GHz Cortex A78 +4x1.95GHz Cortex A55; 2x1.6 GHz Cortex A75 + 6x1.6 GHz Cortex A55
CPU type: Octa-Core; Octa-Core
Process: 4 nm; 12 nm
Frequency: 2.4 GHz; 1.6 GHz
GPU: Adreno 710; ARM Mali-G57
RAM: 12 GB; 4 GB
RAM type: LPDDR4X RAM; LPDDR4X RAM
64-bit: Yes; Yes

Resolution: 64 Mpx; 13 Mpx
Aperture: ƒ/ 1.79; ƒ/ 2.2
Sensor: Omnivision OV64B; Samsung S5K3L6
Pixel size: 0.70 µm; 1.12 µm
Sensor size: 1/2"; 1/3.1"
Flash: Quad LED; LED
Optical stabilization: Yes; No
Slow motion: Yes, 240 fps; No, 30 fps
Features: 4K Video, Digital zoom, Triple camera, Digital image stabilization, Optical Stabilization (OIS), Autofocus, Touch focus, Phase detection autofocus (PDAF), Continuous shooting, Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer; 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

Dimensions: 74.3 mm 160.5 mm 8.2 mm Print 3D Model; 75.2 mm 163.2 mm 9.2 mm Print 3D Model
Weight: 181 g; 196 g
Materials: Corning Gorilla Glass Victus; Plastic
Colors: Black White Blue; Black Violet
Water/dust resistance: IP54; —
Usable surface: 90 %; 84 %
Drop resistance: —; Class A B C D E 113 drops without defects
Repairability: —; Class A B C D E

Operating system: Android 14 Upside-down cake HyperOS (Android 14); Android 14 Upside-down cake Android 14
Updates: OS updates: 2 years, Security updates: 2 years; —
Google services: With Google Mobile Services; With Google Mobile Services

SIM: Dual SIM Dual Standby (Nano SIM + Nano SIM); Dual SIM Dual Standby (Nano SIM + Nano SIM)
Bluetooth: Bluetooth 5.2 LELow energy consumption; Bluetooth 5.0 LELow energy consumption
Bluetooth profiles: A2DP (Advanced Audio Distribution Profile), LE (Low Energy), APT-x, LDAC, SBC, AAC; A2DP (Advanced Audio Distribution Profile), HID (Human Interface Profile), LE (Low Energy)
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
Wi-Fi features: Dual band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display, Wi-Fi MiMO; Dual band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display
USB: USB Type-C; USB Type-C
USB features: Charging, OTG; Charging, OTG
Navigation: GPS, A-GPS, GLONASS, Beidou, QZSS, Galileo, BeiDou (B1); GPS, A-GPS, GLONASS, Beidou, Galileo

5G: n1 (2100), n3 (1800), n5 (850), n7 (2600), n8 (900), n20 (800), n28b (700), n28a (700), n38 (2600), n40 (2300), n41 (2500), n66 (1700), n77 (3700), n78 (3500); —
4G LTE: 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), 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), B17 (700), B19 (800), B20 (800), B26 (850), B28b (700), B28a (700), B38 (TDD 2600), B40 (TDD 2300), B41 (TDD 2500), B66 (1700/2100)
3G: B1 (2100), B2 (1900), B4 (1700/2100 AWS A-F), B5 (850), B6 (800), B8 (900), B19 (800); B1 (2100), B2 (1900), B5 (850), B8 (900)
2G: B2 (1900), B3 (1800), B5 (850), B8 (900); B2 (1900), B3 (1800), B5 (850), B8 (900)