Currently, most cell phones or mobiles on the market come in two forms: single-SIM and dual or dual-SIM. Within the dual SIM category there are two types of devices: dual standby dual SIMs (DSDS) which are practically the majority of current devices and dual active dual SIMs (DSDA), also known as “Full Active” or “Dual Call” , which apparently are totally discontinued.
Technology Dual SIM Dual Standby allows two SIM cards in a single radio receiver. Both can be on hold to receive calls, however, when one of them is in use (in a call or even browsing) the other is offline. Calls that reach the inactive SIM will be forwarded to voicemail.
Functioning of the Dual SIM Dual Active feature
A Dual SIM Dual Active device has two radio antennas, one for each SIM. For this reason it is capable of receiving calls on both lines, so you do not miss calls. Even if you cannot answer two calls at the same time, if you are talking on one SIM, the device will notify you of an incoming call on the other and you can put the first call on hold to answer the second one. And something that may be more necessary: your Internet connection will not be lost when you use the data from one SIM while talking on the other.
Unfortunately, these Dual SIM Dual Active phones are no longer manufactured, and beyond the low demand they have, probably the main cause is that, since two radio antennas are necessary, there is a higher battery consumption, a resource that has already by itself it is limited in today’s mobiles.
If you are one of the few who are currently looking for the advantages of a Dual SIM Dual Active cell phone, you will have to look for models from several years ago, such as those mentioned below, confirmed with this feature by certain manufacturers and the website gsmarena.com. They are ordered from the most powerful to the most modest.
Contents
ASUS Zenfone 2 (ZE551ML)
5.5-inch screen, 3000 mAh Li-Po battery, Quad Core Intel Atom processor (up to 2.3 GHz), RAM up to 4 GB, 16/32/64 GB internal storage with micro SD support, 13 and 5 MP cameras , LTE, weight of 179 grams and thickness of 10.9 mm, Android 5.
Huawei Ascend Mate 7
6-inch display, 4100 mAh Li-Po battery, Octa Core HiSilicon Kirin 925 processor (1.8 GHz + 1.3 GHz), RAM up to 3GB, 16/32 GB internal storage with micro SD support, 13 and 5 cameras MP, LTE, 185 gram weight and 7.9 mm thickness, Android 4.4.2.
This phone uses the SIM 2 slot to house the micro SD as well.
Huawei Honor 6 Plus (Huawei Honor 6X)
5.5-inch screen, 3600 mAh Li-Po battery, Octa Core HiSilicon Kirin 925 processor (1.8 + 1.3 GHz), 3 GB RAM, 16/32 GB internal storage with micro SD support, 8 and 8 MP cameras ( the rear camera has dual lens), up to LTE, weight of 165 grams and thickness of 7.5 mm, Android 4.4.2.
This phone uses the SIM 2 slot to house the micro SD as well.
Asus Zenfone 2 Laser (ZE551KL)
5.5-inch screen, 3000 mAh Li-Po battery, Octa Core Qualcomm Snapdragon 615 MSM8939 (1.7 + 1 GHz) processor, 3GB RAM, 16/32 GB internal storage with micro SD support, 13 and 5 MP cameras , LTE, weight of 170 grams and thickness of 10.9 mm, Android 5.
Samsung Galaxy S4 (I9502)
5-inch screen, 2600 mAh Li-Ion battery, Octa Core Intel Exynos 5410 Octa processor (1.6 GHz + 1.2 GHz), 2 GB RAM, 16/32/64 GB internal storage with micro SD support, 13 cameras and 2 MP, weight of 132 grams and thickness of 7.9 mm, Android 4.2.2.
Lenovo Vibe X2 Dual SIM
5-inch screen, 2300 mAh Li-Po battery, Octa Core Mediatek MT6595M processor (2 GHz + 1.7 GHz), 2 GB RAM, 32 GB internal storage, 13 and 5 MP cameras, LTE, weight of 120 grams and thickness of 7.3 mm, Android 4.4.
Sony Xperia M2 Dual (D2302)
4.8 inch display, 2300 mAh Li-Ion battery, Quad Core Qualcomm Snapdragon 400 MSM8226-0 (1.2 GHz) processor, 1 GB RAM, 8 GB internal storage with micro SD support, 8 MP and VGA cameras, weight 148 grams and 8.6 mm thickness, Android 4.3.
HTC Desire 600 Dual SIM
4.5-inch screen, 1860 mAh Li-Ion battery, Quad Core Qualcomm Snapdragon 200 MSM8625Q (1.2 GHz) processor, 1 GB RAM, 8 GB internal storage with micro SD support, 8 and 1.6 MP cameras, weight of 130 grams and 9.3mm thickness, Android 4.1.2.
Gigabyte GSmart Simba SX1
5-inch screen, 1900 mAh Li-Ion battery, Dual Core Qualcomm Snapdragon 400 MSM8230 (1.4 GHz) processor, 1 GB RAM, 4 GB internal storage with micro SD support, 13 and 2 MP cameras, weight of 165 grams and thickness of 9.5 mm, Android 4.2.
HTC Desire 501 Dual SIM
4.3-inch screen, 2100 mAh Li-Ion battery, Dual Core NovaThor U8500 processor (1.2 GHz), 1 GB RAM, 8 GB internal storage with micro SD support, 8 and 2.1 MP cameras, weight of 130 grams and 9.8mm thickness, Android 4.1.
Sony Xperia E1 Dual
4-inch screen, 1750 mAh Li-Ion battery, Dual Core Qualcomm Snapdragon 200 MSM8210 (1.2 GHz) processor, 512 MB RAM, 4 GB internal storage with micro SD support, 3.15 MP camera, weight of 122 grams and 12mm thickness, Android 4.3.
Samsung Galaxy Ace Duos (S6802)
3.5-inch screen, 1300 mAh Li-Ion battery, 832 MHz processor, 512 MB RAM, 3 GB internal storage with micro SD support, 5 MP camera, 122 gram weight and 11.5 mm thickness, Android 2.3 .
LG Optimus Net Dual (P698)
3.2-inch screen, 1500 mAh Li-Ion battery, Qualcomm Snapdragon S1 MSM7227T (800 MHz) processor, 512 MB RAM, 150 MB internal storage with micro SD support, 3.15 MP camera, weight of 102 grams and thickness of 12.1 mm, Android 2.3.4.
LG GX500 (cell not smartphone)
3-inch screen, 1500 mAh Li-Po battery, 49 MB internal storage with micro SD support, 3 MP camera, weight of 118 grams and thickness of 13 mm.
This is how Dual SIM phones handle simultaneous calls
How to use both SIM and micro SD at the same time on a modern Dual SIM phone
What does it mean and how to avoid network lock (invalid SIM) in Samsung
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