Oppo K15 Pro vs Ulefone Note 21

Oppo K15 Pro
Oppo
K15 Pro
Ulefone Note 21
Ulefone
Note 21

At a glance

Brand
Oppo
Ulefone
Release date
March 2026, 3 months ago
January 2025, 1 years 5 months ago
AnTuTu
3.290.000 Antutu v11 Overall performance better than 98% of devices
251.000 Antutu v10 Overall performance better than 59% of devices

Display

Size
6.78"
6.56"
Resolution
1216 x 2640 px QHD
720 x 1612 px HD+
Type
AMOLED
LCD IPS
Density
441 ppi Very high density
269 ppi Medium Density
Aspect ratio
19.5:9
20:9
Features
Hole-punch Notch, Refresh rate 165 Hz, HDR10+, DCI-P3, 10 Bits panel, Scratch resistant, 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

Performance

Chipset
MediaTek Dimensity 9500s
Unisoc Tiger T606
CPU
1x3,73 GHz C1 Ultra + 3x3 GHz C1 Premium + 4x2,4 GHz C1 Pro
2x1.6 GHz Cortex A75 + 6x1.6 GHz Cortex A55
CPU type
Octa-Core
Octa-Core
Process
3 nm
12 nm
Frequency
3.73 GHz
1.6 GHz
GPU
Mali G1 Ultra 1612 MHz
ARM Mali-G57
RAM
12 GB
4 GB
RAM type
RAM LPDDR5X
LPDDR4X RAM
64-bit
Yes
Yes

Rear camera

Resolution
50 Mpx
13 Mpx
Aperture
Unknow
ƒ/ 2.2
Flash
Dual LED
LED
Optical stabilization
Yes
No
Slow motion
Yes, 240 fps
No, 30 fps
Features
UIS, Noise reduction, Time-Lapse, 4K Video, Digital zoom, Dual camera, Digital image stabilization, Optical Stabilization (OIS), Autofocus, Touch focus, 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
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
Sensor
Samsung S5K3L6
Pixel size
1.12 µm
Sensor size
1/3.1"

Front camera

Resolution
16 Mpx
8 Mpx
Aperture
Unknow
Unknow

Battery

Capacity
8000 mAh
5000 mAh
Type
Li-Ion
Li-Polymer
Fast charge
Yes , 100.0W
Yes , 10.0W
Features
Bypass Charging, Reverse charging, Non-removable
Non-removable
Charge cycles
1000 cycles
Runtime
~ 47h

Storage

Capacity
256 GB
128 GB
SD slot
No
Yes , Slot for SD or second SIM card

Body

Dimensions
77.5 mm 162.4 mm 8.3 mm Print 3D Model
75.2 mm 163.2 mm 9.2 mm Print 3D Model
Weight
213 g
196 g
Materials
Metal
Plastic
Colors
Silver Gray Pale Pink
Black Violet
Water/dust resistance
IP69
Usable surface
89 %
84 %
Drop resistance
Class A B C D E 113 drops without defects
Repairability
Class A B C D E

Software

Operating system
Android 16 ColorOS 16 (Android 16)
Android 14 Upside-down cake Android 14
Google services
Without Google Mobile services
With Google Mobile Services

Connectivity

SIM
Dual SIM Dual Standby (Nano SIM + Nano SIM)
Dual SIM Dual Standby (Nano SIM + Nano SIM)
Bluetooth
Bluetooth 5.4 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, WiFi 6 (802.11ax) , WiFi 7 (802.11be)
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, GPS (L1+L5), BeiDou (B1), Galileo (E1+E5a), BeiDou (B2), QZSS (L1 + L5)
GPS, A-GPS, GLONASS, Beidou, Galileo

Networks

5G
n1 (2100), n2 (1900 PCS), n3 (1800), n5 (850), n7 (2600), n8 (900), n18 (850), n20 (800), n25 (1900), n26 (850), n28a (700), n38 (2600), n40 (2300), n41 (2500), n48 (3500), 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), B18 (800), B19 (800), B20 (800), B25 (1900+), B26 (850), B28a (700), B34 (TDD 2100), B38 (TDD 2600), B39 (TDD 1900), B40 (TDD 2300), B41 (TDD 2500), B42 (TDD 3500), B43 (TDD 3700), B48 (TDD 3600), 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)

Sensors & security

Fingerprint
Yes, in screen
Yes, on the side
Accelerometer
Yes
Yes
Proximity
Yes
Yes
Light sensor
Yes
Yes
Cooling system
Yes
No
Audio
Stereo Speakers

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Compared with Ulefone Note 21

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