AGM X2 Max vs Oppo A57

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800
3G network

HSDPA 850, 900, 1700, 1900, 2100; TD-SCDMA 1880-1920 MHz; TD-SCDMA 2010-2025 MHz

HSDPA 850, 900, 1900, 2100 & TD-SCDMA
4G network

LTE frequency band 1(2100), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 18(800), 39(1900); LTE-TDD 1900, 2300, 2500, 2600 MHz

LTE frequency band 1(2100), 3(1800), 5(850), 8(900), 38(2600), 39(1900), 40(2300), 41(2500)
HSPA speed

-

HSPA
LTE speed

LTE

LTE
GPRS

Yes

Yes
EDGE

Yes

Yes

Main camera
Camera type

Dual

-
Main camera

21 MP

13 MP, f/2.2
21 MP
Primary camera resolution

5264 x 3960 pixels

-
Primary camera video

1080p@30fps

1080p@30fps
Primary camera Autofocus

-

phase detection autofocus
Primary camera flash

dual-LED flash

LED flash
Primary camera phase detection autofocus

phase detection autofocus

-
Camera features

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

Geo-tagging, HDR, face detection, panorama, touch focus

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n, 802.11n 5 Ghz

Wi-Fi 802.11b, 802.11g, 802.11n
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

-
WLAN WiFi Dual Band

Yes

-
USB

microUSB 2.0

microUSB 2.0
USB host

-

Yes
Bluetooth

v4.0

v4.1
Bluetooth A2DP

Yes

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

-
Beidou

Yes

-

Features
Messaging SMS

-

SMS(threaded view)
Messaging MMS

-

MMS
Messaging Email

-

Email
Messaging Push Email

-

Push Email
Java

-

No
Sensors

Accelerometer, compass, fingerprint, light, proximity

Fingerprint (front-mounted), accelerometer, compass, proximity