Nowadays, people’s lives have completely transformed due to technological advancements. The world of smartphones has definitely evolved too. It’s no doubt that smartphones have become an inevitable part of our lives. With the development of dual SIM phones, built with an additional SIM card slot, people can now manage personal as well as business calls from a single phone. Gone are the days where people have to carry two mobile phones or switch SIM cards so they can separate their personal and business contacts. This is one of the primary benefits of having a dual SIM phone; you can have one mobile number for family and friends, and another one for work colleagues.
What Is a Dual SIM Phone?
Dual-SIM phones allow the use and insertion of two SIM cards on a single smartphone or device. This is different from a single SIM phone, which only allows one SIM card for use. Most dual SIM phones have active dual SIM capability. A dual SIM phone can support two active SIMs at the same time without the need for removing and switching SIMs to change your mobile number. As a result, you can receive/send messages and calls on both lines. You can also choose which SIM card can be your voice call card or primary mobile data/network.
Why Are Dual SIM Phones Good?
For some individuals, purchasing dual SIM card phones can be beneficial. It greatly benefits entrepreneurs who tend to have one mobile number for their business or work and another one for personal contacts. A businessman or businesswoman can either have two different mobile phones, one for personal use while one for business networks. With a dual SIM phone, you can have both numbers active and ready for use anytime. Carrying one mobile phone is more convenient, safer, and more comfortable than having two mobile phones.
Dual-SIM phones that are unlocked or aren’t tied to specific networks let users register or activate any mobile carrier they like. That said, it’s one of the excellent options for frequent travelers. You can effectively use a dual SIM smartphone for activating a local SIM when you travel to a foreign country without worrying about unlocking your smartphone or purchasing a new phone for traveling.
Another advantage of a dual SIM phone is maximizing your usage for phone calls, texts, and other purposes such as mobile data. Some network service providers have great mobile data plans but pricey voice plans and vice versa. With a dual SIM phone, you can combine conveniently two different phone plans from two different network providers and still get a cheaper monthly bill for data as well as calling and messaging.
How Does a Dual SIM Phone Work?
When you’ve decided to buy a dual SIM mobile phone, you should know how it works as well as its different types of implementation.
Here are the different implementations of a dual SIM phone and how they work:
Dual SIM (Dual Active)
This type of Dual-SIM phone lets you call someone from both of the SIM cards activated on your mobile phone. It can also receive calls on either of the two SIM cards all at once. This implementation has both SIM cards active and when you are calling someone from one of these networks, the other SIM still works and can make phone calls, receive texts, or use mobile data.
Dual SIM (Passive)
A Dual-SIM passive phone can support two different SIM cards; however, only one of them can be active at any given time. That said, one SIM card is not reachable or won’t work since the other SIM is activated. If you want to use the other SIM, you need to activate it manually.
Dual SIM (Dual Standby)
This implementation is a combination of Dual Active and Dual Passive. It allows your smartphone to have two active SIM cards, and they utilize only one radio transceiver. As a result, they are both active only for as long as they’re not in use; hence, the name itself. As long as both SIM cards are in Standby mode, you can text or call someone on any of the SIM cards.
Best Dual SIM Phones
Whether for personal, business, privacy concerns, or travel, we have curated the list of the 20 best dual SIM card phones for you to choose from.
Honor View 20
Honor View 20 is one of the most stylish-looking dual SIM smartphones available with its 6.4” display and IPS LCD capacitive touch screen. It also has a 1080 x 2310-pixel resolution that ensures crystal clear display quality.
Honor View 20 is the only mobile phone in the market integrating Sony’s IMX 586 sensor, ensuring that this smartphone operates excellently in low light photography as well as captures crystal-clear details during day photography.
- – Impressive battery life
- – Excellent camera performance
- – Impressive battery life
- – Excellent camera performance
Asus Zenfone 5Z
Asus Zenfone 5Z’s specs stand out among its contenders because of its premium features at an affordable price. Zenfone 5Z sports a 6.2” display with full HD resolution and has a 19:9 aspect ratio ensuring you a full experience regardless of what you’re doing on your device.
Asus Zenfone 5Z as a dual SIM phone also comes with a Snapdragon 845 chipset, which ensures that you can play games and use apps without interruption. Speaking of its UI design and software, the new Zenfone 5Z comes with a much cleaner and smoother Zen UI with theme engine integration and icons that don’t appear cluttered.
It has a 3,300 mAH battery that lasts for seven hours. It may not sound impressive for some; however, one of the most impressive things about this smartphone is that its fast-charging feature enables you to charge the phone up to 50% in less than half an hour.
- – Excellent graphics display
- – Excellent system performance
- – Not water-resistant
- – Less impressive battery backup
Xiaomi Pocophone F1
Xiaomi’s Pocophone F1 is one of the best mid-range dual SIM mobile phones that is built with features only found in smartphones that are much more expensive. Pocophone F1 has dual rear cameras with a configuration of 12 MP and 5 MP sensors, which produces beautiful images even in low light. It also has an octa-core processor integrated with the Qualcomm Snapdragon 845 chipset as well as Adreno 630 graphics card, ensuring a smooth and flawless performance when you’re playing games such as PUBG Mobile, and Asphalt.
Pocophone F1’s robust 4,000 mAh battery will help it run for an entire day without charging the device. It also comes with a fast-charging feature, an in-box charger that can boost up the battery from 25% to 73% within an hour.
- – Excellent long-lasting battery life
- – Great value-for-money features
- – Heats quickly
- – No dust protection
Sony Xperia XZ3
Sony Xperia XZ3 is a power-packed dual SIM smartphone that comes with a 6” display and a 1440 x 2880-pixel resolution. XZ3 is powered by octa-core processors i.e. a set of two Quad-Core Cryo 385 processors, each with 2.8 GHz and 1.8 GHz clock speed. Integrated with 4 GB of RAM, XZ3 operates smoothly whether you are multitasking or playing heavy games.
Xperia XZ3 is packed with a 3,300 mAh battery, ensuring you with a battery life that you can go on with your day without charging your phone again and again. Speaking of its camera, the rear camera has a 19-megapixel sensor and supports a 5160 x 3872-pixel resolution. The front camera is equivalent to Exmor Rs sensors.
- – Premium display and screen
- – Sophisticated design
- – Cluttered user interface
- – Camera quality not impressive
Huawei Mate 20 Pro
Huawei Mate 20 Pro is equipped with a beautiful 6.39” screen integrated with an OLED display and highlights 1440 x 3120-pixel resolution that provides you with a crystal-clear display. This dual SIM phone from Huawei has an aspect ratio of 19:5:9 with 498 PPI pixel density so that you can stream movies and play video games seamlessly. It also comes with protection from Corning Gorilla Glass on its screen.
Mate 20 Pro runs on Android 9.0 so you can get the newest version of the operating system. Integrated with 6 GB RAM and Kirin 980 chipset, the smartphone is completely functional and can handle gaming, and streaming without any disruption. You can also play high-end mobile games without any delay.
- – Wide-angle lens with three cameras
- – Top-notch features and specs
- – HDR mode not as great as flagship phones
- – Expensive
Apple iPhone XR
Apple iPhone XR is a high-range dual SIM mobile phone that caters to Apple aficionados as well as people who are impressed by its excellent features including powerful performance, stunning images, and reliability that has been associated with Apple’s reputation.
Apple’s XR smartphone comes with a new type of LCD screen that is curved at the corners, enabling an immersive all-screen display. It looks extremely sophisticated and advanced with this all-new feature.
One of the best features about the iPhone XR is that the device comes with a better and improved battery performance than the previous models. This smartphone meets all the standards for an Apple device. It works seamlessly and allows multitasking without any interruption.
- – Excellent performance and features
- – Great battery backup compared to other iPhone models
- – Camera mode below iPhone standards
- – Screen resolution not as great as other same-priced smartphones
Motorola Moto G7 Plus
Moto G7 Plus guarantees to be a flagship smartphone from Motorola G Series. It is a great-value device that offers specs and features that are usually found in smartphones at a much more expensive price than Moto G7 Plus.
Built with Android stock, G7 runs sharp and smooth even when multitasking, courtesy of its Android 9.0 Pie release. In terms of performance, the Snapdragon processor is extremely snappy and fast. With the graphic chipset integration, Moto G7 Plus provides you with pure gaming experience unparalleled in this price range.
- – Water-resistant layer
- – Robust and durable phone
- – Weak battery life
- – Poor camera quality
OnePlus 6T is the latest flagship dual SIM smartphone by OnePlus that is built with enthralling technology. It comes with the fastest in-display fingerprint sensor on any mobile phone in the market. This smartphone has always been known for its stunning camera quality. With the all-new nightscape and optical image stabilization features, you can capture stunning photos even in low light photography.
OnePlus 6T is also developed with DASH charging technology. With just half an hour of charging, you can already use OnePlus 6T for a full working day. It comes with an Oxygen operating system powered by Android Pie, which provides you with seamless performance.
- – Fast-charging technology
- – Smooth fingerprint unlocking
- – Less battery backup
- – Panoramic photography not that great
OnePlus 7 Pro
OnePlus 7 Pro is one of the fastest dual SIM Android phones available. It has partnered with Dolby to deliver crystal clear sound quality. It is built with two stereo speakers, which guarantee you with three-dimensional output while streaming videos and movies. This makes your entertainment experience smooth and uninterrupted.
OnePlus 7 Pro has a powerful 10-layer liquid cooling system that prevents the phone from overheating and GPU/CPU throttling the speed of the chipset. As a result, you can play high-end games without the phone overheating and lagging.
- – Super-fast charging feature
- – Excellent quality of display
- – Headphone jack not available
- – Mediocre camera
Samsung Galaxy S10
Samsung Galaxy S10 has a wide range of features that make it stand out from the crowd. It is also one of the best-reviewed Snapdragon 855 smartphones available in the market. Samsung Galaxy S10’s display is completely impressive.
Samsung’s S10 comes with a wireless charging feature and a Power Share feature so you can share battery power with another smartphone. The smartphone has an intelligent Wi-Fi that makes sure your internet connection is secure and stable even on public networks. It is also built with an intelligent AI engine from the Snapdragon 855 processor that provides you with an optimized performance so you can have the most out of your battery life.
- – Stunning images from the front and rear cameras
- – Innovative features such as Power Share
- – Slippery grip due to the glass rear
- – Few user-reported issues with the AT&T Network
Huawei P30 Pro
Huawei P30 Pro is a classic beauty that comes with an iconic aesthetic. This smartphone is an epitome of elegance with its colors and curved glass body inspired by water and space. This Huawei dual SIM phone comes with an acoustic display technology that increases this device’s hearing area to the maximum level.
One of the noteworthy features of Huawei P30 is its electromagnetic sound levitation technology, which projects audio immediately from the display to the ear instead of the traditional bottom or top speaker.
- – Impressive battery performance
- – Water-resistant
- – Dust-resistant
- – Washed-out colors for 4K video
- – T-Mobile issues
Xiaomi Mi 9
Xiaomi Mi 9 has Qualcomm’s latest Snapdragon 855 processor, a larger screen display, and an in-display fingerprint sensor as standard. It also comes with 20W wireless charging as well as a triple-lens camera that has a built-in 48-megapixel lens.
Although this smartphone has been succeeded by Xiaomi’s Mi 10, it is still an insanely beautiful dual SIM phone that offers the best value for money you’ll have in any type of smartphone.
- – Super-fast wired and wireless charging
- – Larger screen for better graphics display
- – Lacking optical stabilization
- – No MicroSD slot
Oppo Reno 10X Zoom
Oppo’s Reno 10X Zoom feels like OnePlus 7 Pro, but it has an all-new and improved camera. With a 48-megapixel main lens and a 5x optical zoom, it is one of the few cameras integrated into a dual SIM smartphone that can compete with the Huawei P30 Pro.
- – Excellent battery performance
- – Impressive camera performance
- – The 1080-pixel resolution of the AMOLED panel
- – Speakers somewhat wimpy
Xiaomi RedMi Note 9S
Xiaomi RedMi Note 9S is one of the best value dual SIM smartphones available on the market. It is an impressive dual SIM phone that costs less than $500, an impressive all-around phone with a decent camera and performance as well as excellent battery life.
Xiaomi RedMi is packed with a massive 5,020 mAh battery that guarantees up to two days of battery life along with some decent robust hardware and photography essentials.
- – Best value for your money
- – Excellent and impressive battery life
- – Lack of NFC in some territories/regions
- – Rear camera module needing improvement
Oppo A9 2020
Oppo A9 2020 is a budget dual SIM phone that manages to be impressive in numerous areas – massive 5,000 mAh battery, 48-megapixel quad-camera, and attractive design. From a price perspective, you are purchasing an excellent camera smartphone that has high-end aesthetics and a device that won’t run out of battery juice quickly.
- – Excellent features at an inexpensive price point
- – Great camera performance
- – UI for camera needing refinement
- – No fast-charging feature
Huawei Nova 5T
Huawei Nova 5T quietly emphasizes and improves daily usage by mastering the essentials of a solid dual SIM phone. Nova 5T’s design is superb, battery life is better than expected, and the cameras are excellent. While it may miss some of the premium features, it’s still a remarkable smartphone that can be an excellent option for everyday use.
- – Best mid-range dual SIM phone
- – All-new and better battery performance
- – Unavailability of OLED display
- – No wireless charging
Realme 6 is one of the best budget dual SIM smartphones available on the market. It’s one of the cheapest smartphones you can purchase that has a 90GHz display. It also comes with robust battery life, speedy performance, and decent camera features.
- – Inexpensive
- – Speedy performance for an affordable smartphone
- – Slightly bigger size for normal users
- – Camera modes needing improvements
Realme X50 Pro
Realme X50 Pro doesn’t have the specs of a water-resistant phone and has a thin structure. Despite these limitations, it has the greatest and latest Snapdragon 865 chipset, UFS 3.0 storage, up to 12 GB of RAM, and 5G capability. It also has an insane 65W super-fast charging, which offers a 60% battery life in just 15 minutes and a full charge capacity in only 35 minutes.
- – “SuperDart” fast-charging technology
- – Best value for money with excellent performance
- – Sound quality or playback needing improvement
- – Low-light photography not that great
Xiaomi Mi Note 10
Mi Note 10 has a USP with Penta-lens 108-megapixel camera, which is quite impressive compared to other dual SIM phones available on the market. It may not be Xiaomi’s flagship device, but it’s a robust all-around mid-range smartphone and has great value for money with excellent features.
- – Longer-lasting battery life
- – Super-fast wired charging technology
- – Core performance not that great
- – A bit pricey for a mid-range dual SIM smartphone
Oppo Reno2 Z
Oppo Reno2 Z provides you with a range of improvements including a larger battery, improved internals, and rear-facing quad-cameras. It’s also a speedy dual SIM smartphone that can compete with popular mid-rangers such as the Pixel 3a.
Oppo Reno2 Z’s battery life lasts an entire day without any glitches. Oppo has integrated the photographic functionalities of the Reno2 Z with advanced features including portrait mode, macro mode, and dark mode.
- – Budget-friendly
- – Great battery performance
- – Camera performance not that great
- – Slightly slower loading speeds when playing mobile games
If you’re looking to purchase a dual SIM smartphone, there are numerous options available in the market. In fact, there may be one too many alternatives, which can be overwhelming. You should create a list of what your needs or preferences are before making any purchases. Consult this buyer’s guide to discover what exactly are the factors that you require before purchasing a dual SIM phone.
Have we missed your favorite smartphone on this list? Do you have any experience with a dual SIM phone recently? We would love to hear your insights and recommendations! Feel free to contact us or comment down below.