General features:
OS： Android 11.0
Storage： 32GB eMMC+2GB LPDDR4 (Default) 64GB eMMC+3GB LPDDR4 (Optional)
Working temperature range： -30°C ~ +75°C
Storage temperature range： -40°C ~ +85°C
Size： 40.5x40.5x2.85mm
Package： LCC+LGA
Weight： 13.0g
Certification: Certification CCC (China) * means in developing
Frequency Band：
China/India
SLM550-C:
LTE-FDD: B1/B3/B5/B8
LTE-TDD: B34/B38/B39/B40/B41
WCDMA: B1/B8
TD-SCDMA: B34/B39
EVDO/CDMA: BC0
GSM: 900/1800MHz
EU/Middle East/Africa/South Korea/Thailand
SLM550-E:
LTE-FDD: B1/B3/B5/B7/B8/B20/B28A
LTE-TDD: B38/B40/B41
WCDMA: B1/B5/B8
GSM: 850/900/1800/1900MHz
North America
SLM550-A*:
LTE-FDD: B2/B4/B5/B7/B12/B13/B17/B25/B26/B66
WCDMA: B2/B4/B5/B8
GSM: 850/1900MHz
Australia/Taiwan/Brazil
SLM550-AU*:
LTE-FDD: B1/B3/B5/B7/B8/B28
LTE-TDD: B40
WCDMA: B1/B5/B8
GSM: 850/900/1800MHz
Japan
SLM550-J*:
LTE-FDD: B1/B3/B8/B18/B19/B26
LTE-TDD: B41 WCDMA: B1/B6/B8/B19
Latin America
SLM550-LA*
LTE-FDD: B2/B4/B5/B7/B8/B25/B28/B66
LTE-TDD: B40
WCDMA: B2/B5/B8
GSM: 850/900/1900MHz
Global
SNM550 Wi-Fi & BT only
USB Interface：
Conform to USB 3.1 standard, support USB OTG
I2C interface: Max 5
(U)SIM interface: 2 (1.8V/2.95V)
UART interface:: Max 3 (support HW flow control, max 4Mbps)
SD Card Interface:: 1 (support SD 3.0, 4-bit SDIO)
PWRKEY: 1.8V, internal pull-up
SPI interface: Max 5
ADC interface: 2
GPIO interface: *24
Motor driver intrface: 1
LED interface: 1
Antenna interface: Main antenna, diversity antenna, GNSS antenna and Wi-Fi & BT antenna
Interface：
LCM Interface: 4-lane MIPI_DSI HD+(720*1680) @60fps
Camera Interface：
Main Camera： 4-lane MIPI_CSI;
Auxiliary Camera： 2-lane MIPI_CSI ; Max rate 2.1Gbps/Lane; Support 13M camera
Touch Screen Interface: capacitive touch screen
Audio Interface: Analog Audio: speaker, earpiece, earphone, 3 mocrophone Support 1x noise reduction microphone
LCM：
LCM interface： 4-lane MIPI_DSI0 + 4-lane MIPI_DSI1 2560*1600 @60fps
Audio & Video：
Support VoLTE Ultra HD voice calls SRVCC/ CSFB voice fallback technology
24-bit/192kHz high fidelity music playback
Wi-Fi Video： Codec 1080P @30fps
Video codec: 1080P @30fps
Outstanding Features：
WLAN: 2.4G/5G, 802.11 a/b/g/n/ac
BT: BT2.1+EDR/3.0/4.1 LE/4.2 BLE，BT5.0
GNSS: GPS/GLONASS/BeiDou
LTE Cat4，Support diversity receiving antenna, DL MIMO 2×2 Support 3GPP E-UTRA Release 12
Bandwidth: 1.4/3/5/10/15/20MHz Built-in charge IC and fuel gauge Support DSDS Firmware update via USB
Electricity Power：
Power supply voltage: 3.55V~4.4V, typical value 3.8V
Data Features：
LTE:
Cat.4 FDD: Max 150Mbps (DL)/50Mbps (UL)
Cat.4 TDD: Max 117Mbps (DL)/30Mbps (UL)
UMTS:
DC-USDPA: Max 42Mbps (DL)
HSUPA: Max 5.76Mbps (UL)
WCDMA: Max 384Kbps (DL/UL)
TD-SCDMA: : Max 4.2Mbps (DL)/2.2Mbps (UL)
CDMA2000:
EVDO: Max 3.1Mbps (DL)/1.8Mbps (UL)
1X Advanced: Max 307.2Kbps (DL/UL)
GSM:
GPRS: Max 107Kbps (DL)/85.6Kbps (UL)
EDGE: Max 236.8Kbps (DL)/236.8Kbps (UL)
* means in developing
