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The eSIM describes the functionality in the SIM, not the physical size of the SIM - and there are eSIMs in many formats (2FF, 3FF, 4FF, MFF). GSMA have also developed a compliance framework [ 9 ] for eSIM devices, eUICCs, and subscription management products - to help with interoperability and security for products supporting eSIM.
There may be compatibility issues with some phones. An eSIM cannot be physically removed from a device, which some might view as a disadvantage if they are concerned about being tracked. [34] The implementation of the eSIM on the Samsung Galaxy series in North America (USA and Canada) is different than the implementation in the rest of the world:
The Galaxy S7 and S7 Edge are the last two phones in the Samsung Galaxy S series to have a physical home button with a front-sided fingerprint sensor embedded in the button. The S7 Active is the last in the Active series to feature three physical buttons with the fingerprint reader embedded home button, when not considering the prematurely ...
A typical SIM card (mini-SIM with micro-SIM cutout) A SIM card or SIM (Subscriber Identity Module) is an integrated circuit (IC) intended to securely store an international mobile subscriber identity (IMSI) number and its related key, which are used to identify and authenticate subscribers on mobile telephone devices (such as mobile phones and laptops).
Dual SIM standby phones allow both SIMs to be accessed by using time multiplexing. When one SIM is in active use, for example on a call, the modem locks to it, leaving the other SIM unavailable. Older examples of dual-SIM standby phones include the Samsung Galaxy S Duos, [23] the Sony Xperia M2 Dual, [24] and the iPhone XS, XS Max and iPhone XR ...
A SIM lock, simlock, network lock, carrier lock or (master) subsidy lock is a technical restriction built into GSM and CDMA [1] mobile phones by mobile phone manufacturers for use by service providers to restrict the use of these phones to specific countries and/or networks.
Google Pixel 9 - Unlocked Android Smartphone with Gemini, Advanced Camera, 24-Hour Battery, and 6.3" Actua Display - Obsidian, 128GB Google £699.00 at amazon.co.uk
The Samsung Galaxy S23 phones are launched with Android 13 and Samsung's One UI 5.1 software. Samsung Galaxy S23. Display: 6.1" Dynamic AMOLED 2X 48-120Hz (adaptive), 19.5:9 aspect ratio; Resolution: 2340×1080 pixels; Processor: Samsung Exynos 2200 or Qualcomm Snapdragon 8 Gen 2; Storage: 128 / 256 / 512 GB (non-expandable) RAM: 8 GB