Cat S61 vs Oppo A1k

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 900, 1700, 1900, 2100

WCDMA 850, 900, 2100
4G network

LTE frequency band 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 19(800), 20(800), 26(850), 28(700), 38(2600), 39(1900), 40(2300), 41(2500)

LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 18(800), 28(700), 38(2600), 40(2300), 41(2500)
HSDPA speed

42.2 Mbps

-
HSUPA speed

5.76 Mbps

-
LTE speed

-

LTE Cat 4, 150.8 Mbps download, 51 Mbps upload
LTE-A speed

LTE-A, (3CA) Cat12, 600 Mbps download, 150 Mbps upload

-
GPRS

Yes

Yes
EDGE

Yes

Yes

Display
Display type

IPS LCD capacitive touchscreen

IPS capacitive touchscreen
Physical size

5.2 inches

6.1 inches
Resolution

1080 x 1920 pixels

720 x 1560 pixels
Pixel density

424 ppi

282 ppi
Display colors

16777216

16777216
Protection

-

2.5D curved glass screen, scratch resistant, Corning Gorilla Glass 3
Multitouch

Yes

Yes

Main camera
Camera type

-

Single
Main camera

16 MP, FLIR thermal camera (Lepton module)

8 MP, f/2.2 , 1/3.2" , 1.4 µm
Primary camera resolution

4608 x 3456 pixels

3264 x 2448 pixels
Primary camera video

2160p@30fps

1080p@30fps
Primary camera Autofocus

phase detection autofocus

-
Primary camera flash

dual-LED dual-tone flash

LED flash
Camera features

Thermal imaging, face detection, geo-tagging, heat palettes, panorama, temp. spot meter, touch focus

Autofocus, continuous shooting, digital zoom, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection

Features
Messaging SMS

SMS(threaded view)

-
Messaging MMS

MMS

-
Messaging Email

Email

-
Messaging IM

IM

-
Messaging Push Email

Push Email

-
Sensors

Accelerometer, barometer, compass, gyro, indoor air quality sensor, proximity

Accelerometer, proximity, light, compass, fingerprint