Huawei GR3 Faq Manual

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5.7 Whether the mobile phone can support for using GSM 850M Network overseas or
not?
Support.
5.8 What kinds of Network do the mobile phones support? Can they be used properly
overseas?
Primary SIM Card:
HUAWEI TAG-L01/HUAWEI TAG-L21：
2G：GSM: 850/900/1800/1900
3G：WCDMA: B1/B8
4G：FDD-LTE:B1/B3/B7/B8/B20
HUAWEI TAG-L13：
2G：GSM: 850/900/1800/1900
3G：WCDMA:B1/B2/B4/B5
4G：FDD-LTE:B2/B4/B5/B7/B12/B17
HUAWEI TAG-L03/HUAWEI TAG-L23：
2G：GSM: 850/900/1800/1900
3G：WCDMA: B1/B2/B4/B5
4G：FDD-LTE: B2/B4/B5/B7/B28
HUAWEI TAG-L22：
2G：GSM: 850/900/1800/1900
3G：WCDMA:B1/B5/B8，要求 B1 支持 DC 42M
4G：TD-LTE：B38/B40
FDD-LTE:B1/B3/B5/B7/B8/B28

Huawei GR3 Specifications

General

Display diagonal	5 \
Display resolution	- pixels
Processor family	MediaTek
Processor frequency	1.5 GHz
Processor architecture	ARM Cortex-A53
Thermal Monitoring Technologies	-
RAM capacity	2 GB
Internal storage capacity	16 GB
Front camera type	Single camera
Rear camera resolution (numeric)	13 MP
Front camera resolution (numeric)	5 MP
3G standards	UMTS
Bluetooth version	4.0
2G bands (primary SIM)	850, 900, 1800, 1900 MHz
Mobile network generation	4G
Headphone connectivity	3.5 mm
Form factor	Bar
Product color	Silver
Platform	Android
Operating system installed	Android 5.1
Audio formats supported	AAC, AAC+, ADPCM, AMR-NB, AMR-WB, APE, FLAC, MIDI, MP2, MP3, OGG, Vorbis, WAV
Video formats supported	H.263, H.264, MPEG4
Talk time (3G)	- h
Battery capacity	2200 mAh
Cables included	USB

Weight and Dimensions

Depth	7.6 mm
Width	71 mm
Height	143.5 mm
Weight	135 g