What is the difference between a dual SIM and a single sim?

Dual SIM phones support the insertion and use of two SIM cards on a single device. This differs from a single SIM device, which only has a slot for one SIM card. A dual SIM phone can support two active SIMs at the same time, without requiring you to remove and swap SIMs to change phone number.

What’s the point of dual SIM?

Dual SIM phones allow users to keep separate contact lists on each SIM, and allow easier roaming by being able to access a foreign network while keeping the existing local card. Vendors of foreign SIMs for travel often promote dual-SIM operation, with a home country and local SIM in the same handset.

Is S9 single SIM or dual SIM?

Samsung Galaxy S9 and Galaxy S9+ are now receiving a firmware update that brings the ability to use two 4G SIM cards with the VoLTE services enabled on both the slots. In addition to the Dual VoLTE functionality, both the smartphones are also getting support for Dual VoWiFi that allows making calls over Wi-Fi networks.

Are all Samsung Galaxy S9 dual SIM?

Mainly it confirms that the Galaxy S9 and Galaxy S9+ will have dual SIM versions in Europe. The Galaxy S9 and S9+ will likely feature the hybrid slot found the Galaxy S8 and S8+, and Note8 Duos models, which can either house two nano SIM cards or a single nano SIM and a microSD card for memory expansion.

Do you need 2 SIMs for a dual SIM phone?

A Dual SIM Passive phone can use two different SIM cards, but only one of them can be active at any time. That means that when one SIM card works, the other is unreachable. To use the second SIM card, you need to activate it manually, and the first SIM deactivates when you do that.

Can I just use one SIM card in a dual SIM phone?

Originally Answered: Can I use one sim card on a dual sim card phone? Yes. It only allows for having two SIM cards, it doesn’t require it.

Is Galaxy S9 single SIM?

The sleek, powerful Samsung Galaxy S9 is here!…Product Images.

Technology:	GSM / CDMA / HSPA / EVDO / LTE
Dimensions:	147.7 x 68.7 x 8.5 mm (5.81 x 2.70 x 0.33 in)
Weight:	163 g (5.75 oz)
Sim:	Single SIM (Nano-SIM) or Hybrid Dual SIM (Nano-SIM, dual stand-by)
Type:	Super AMOLED capacitive touchscreen, 16M colors

What is the difference between Galaxy S9/S9+ dual SIM and single SIM?

So, the difference is that the slot 2 in dual SIM version Galaxy S9/S9+ can be used for either a SIM card or a micro SD card (but not both at the same time); while the slot 2 in single-SIM version Galaxy S9 and S9+ can only be used for a micro SD card. For both versions, slot 1 can be used for a nano-SIM card only.

Can you insert a micro SD card in dual-SIM Galaxy S9/S9+?

You cannot insert a micro SD card when you use two SIM cards in dual-SIM Galaxy S9 or S9+. The SIM card slot 2 in dual-SIM Galaxy S9 or S9+ can be used for a SIM card or a micro SD card, but not both at the same time as explained in this guide.

What are the limitations of using two SIM cards on Galaxy S9/S9+?

What are the limitations of using two SIM cards on Galaxy S9 and S9+? The dual-SIM Galaxy S9 and S9+ are dual standby only, not dual active. This means both SIM cards are reachable when in the standby mode. When you are talking through one SIM card, the other SIM card, by default, will be unreachable unless you enable dual SIM always on.

What is the difference between s7/8/9 and S7 dual SIM?

The only difference is that the dual sim variant has an IMEI assigned to the second SIM and some additional modem/baseband files. You can in fact convert a single SIM S7/8/9 to a dual SIM variant with some special GSM software/toolbox such as GCKey, Chimera, Octopus, Z3x etc which can access and modify the modem partition(s) to enable said feature.