Screen size
K3 ProWinner: 6.5"+0.2%
S126.5"
Quick verdict
K3 Pro leads the measured specs 5-3.
Measured wins
K3 Pro
5
spec wins
Overall winner
Ties
10
equal specs
S12
3
spec wins
Screen size
Technology
K3 Pro
GSM / CDMA / HSPA / LTE
S12
GSM / HSPA / LTE
2G bands
K3 Pro
GSM 850 / 900 / 1800 / 1900 , CDMA 800 & TD-SCDMA
S12
GSM 850 / 900 / 1800 / 1900
3G bands
K3 Pro
HSDPA 850 / 900 / 1900 / 2100
S12
HSDPA 900 / 2100
4G bands
K3 Pro
1, 3, 5, 7, 8, 38, 39, 40, 41
Resolution
equal specsRefresh rate
Peak brightness
Pixel density
equal specsCPU speed
RAM
Storage
Main camera
equal specsFront camera
equal specsBattery
equal specsWired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
S12
1, 3, 7, 8, 20, 28, 40
Speed
K3 Pro
HSPA, LTE
S12
HSPA 42.2/11.5 Mbps, LTE Cat4 150/50 Mbps
Announced
K3 Pro
2020, August 24. Released 2020, September
S12
2020, July. Released 2020, July 15
Status
K3 Pro
Discontinued
S12
Discontinued
Dimensions
K3 Pro
164.3 x 77.6 x 9.7 mm (6.47 x 3.06 x 0.38 in)
S12
164.6 x 76.6 x 8.8 mm (6.48 x 3.02 x 0.35 in)
Weight
K3 Pro
205 g (7.23 oz)
S12
181 g (6.38 oz)
SIM
K3 Pro
Nano-SIM + Nano-SIM
S12
Nano-SIM + Nano-SIM
Build
K3 Pro
-
S12
Glass front, plastic frame, plastic back
Type
K3 Pro
IPS LCD
S12
IPS LCD
Size
K3 Pro
6.53 inches, 102.9 cm2 (~80.7% screen-to-body ratio)
S12
6.52 inches, 102.6 cm2 (~81.4% screen-to-body ratio)
Resolution
K3 Pro
720 x 1600 pixels, 20:9 ratio (~269 ppi density)
S12
720 x 1600 pixels, 20:9 ratio (~269 ppi density)
OS
K3 Pro
Android 9.0 (Pie)
S12
Android 10
Chipset
K3 Pro
Mediatek MT6771 Helio P60 (12 nm)
S12
Mediatek MT6762D Helio A25 (12 nm)
CPU
K3 Pro
Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
S12
Octa-core (4x1.8 GHz Cortex-A53 & 4x1.5 GHz Cortex-A53)
GPU
K3 Pro
Mali-G72 MP3
S12
PowerVR GE8320
Card slot
K3 Pro
microSDXC
S12
microSDXC
Internal
K3 Pro
128GB 6GB RAM, 128GB 8GB RAM
S12
64GB 4GB RAM
Other
K3 Pro
eMMC 5.1
S12
eMMC 5.1
Triple
K3 Pro
16 MP, f/2.0, (wide), 1/3.1", 1.0µm, AF 2 other unknown cameras
S12
16 MP, (wide), AF 8 MP, (ultrawide) Auxiliary lens
Features
K3 Pro
LED flash, HDR, panorama
S12
LED flash, HDR, panorama
Video
K3 Pro
1080p@30fps
S12
1080p@30fps
Single
K3 Pro
13 MP, f/2.0, (wide), 1/3.1", 1.12µm
S12
13 MP
Video
K3 Pro
1080p@30fps
S12
1080p@30fps
Loudspeaker
K3 Pro
Yes
S12
Yes
3.5mm jack
K3 Pro
Yes
S12
Yes
WLAN
K3 Pro
Wi-Fi 802.11 b/g/n
S12
Wi-Fi 802.11 b/g/n
Bluetooth
K3 Pro
4.0, A2DP
S12
4.2, A2DP
Positioning
K3 Pro
GPS
S12
GPS
NFC
K3 Pro
No
S12
No
Radio
K3 Pro
FM radio
S12
FM radio
USB
K3 Pro
USB Type-C 2.0
S12
USB Type-C 2.0
Sensors
K3 Pro
Fingerprint (rear-mounted), accelerometer, proximity
S12
Fingerprint (rear-mounted), accelerometer, proximity
Type
K3 Pro
Li-Po 4000 mAh
S12
Li-Po 4000 mAh
Charging
K3 Pro
10W wired
S12
-
Colors
K3 Pro
Jade Green, Pearl White
S12
Black, Blue
Price
K3 Pro
About 80 EUR
S12
About 140 EUR