SmartPhones.

In general terms, a smartphone runs an operating system that supports mobile and web applications and provides a connection to a cellular network. Smartphones allow people to make phone calls, send text messages, and access the Internet.

They run a mobile operating system (OS) and functions like a mini computer. Smartphones also function as portable media players, digital cameras, video cameras, etc. The operating system equips the device with advanced computing capabilities, runs applications and enables the device to perform basic features like:

• Access Web pages and browse the Web using mobile (5G, 4G and 3G) data networks and WiFi support, along with mobile broadband.
• Bluetooth Support.
• Compose/Edit and View and Send emails..
• View, edit and share documents.
• Download files.
• Create and play music playlists.
• Take/Edit photos and record/edit videos.
• Play games
• Match movies.
• Communicate with friends and family through text messages and video chats.

All of the above, your smartphones become as your mobile office or as modernized personal digital assistants (PDAs), with wireless connectivity, compact design and with a high-resolution touch screen, multi-touch interface and QWERTY keyboard.

Today’s popular operating systems include Google’s Android ((open-source platform), Apple’s iOS, Microsoft’s Windows Phone, Nokia’s Symbian and BlackBerry’s OS.

Let’s check the available options in this fascinating world for this quarter (Q4 2021).

1.- Samsung Galaxy S21 Ultra.

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Pro-Grade Camera. Zoom in close with 100X Space Zoom, and take photos and videos like a pro with our easy-to-use, multi-lens camera. SHARP 8K VIDEO: Capture your life’s best moments in head-turning, super-smooth, cinema quality 8K Video. Multiple Ways To Record. Create share-ready videos and GIFs with multi-cam recording and automatic, professional-style effects. Higher Resolution, 100X Zoom. Get amazing clarity with a dual lens combo of 3X and 10X optical zoom and revolutionary 100X Space Zoom. All Day Intelligent Battery. Intuitively manages your cellphone’s usage, so you can go all day without charging. Power of 5G. Experience next-generation connectivity for everything you love to do: more sharing, more gaming, more experiences. Battery power consumption depends on usage patterns and results may vary. Rating: 4.6 of 8,403 Ratings in Amazon.

2.- Samsung Galaxy S20.

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Pro-Grade Camera. Features high-powered pro lenses for beautiful photographs in any light with 3X optical zoom, Battery Capacity:4500mAh.  30X Space Zoom. Zoom in close from afar or magnify details of something nearby with the power of 30X Space Zoom. Night Mode. Capture crisp images and vibrant videos with Night Mode and capture high-quality content in low light. Single-Take AI. One tap of the screen captures multiple images and videos all at once. Power of 5G. Get next-level power with Samsung Galaxy 5G; More sharing, more gaming, and more experiences. Colors To Suit Your Style. Choose from six colorful hues in a sleek matte finish Rating: 4.6 of 7,315 Ratings in Amazon.

3.- Moto G Power.

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Unlocked for the freedom to choose your carrier. Compatible with AT&T, Sprint, T-Mobile, and Verizon networks. Sim card not included. Customers may need to contact Sprint for activation on Sprint’s network. To use this Device on Verizon, first, provision your SIM through Verizon Wireless. Log in to your account on Verizon Wireless. Devices - activate or switch devices - activate. Up to three-day battery. Capture more of life without stopping to recharge thanks to a 5000 mAh battery.Aspect Ratio: 19:9. 48 MP triple camera system. Take stunning photos in any light, as well as beautifully blurred portraits and incredibly detailed closeups. 6.6" Max Vision HD, display. Watch games, movies, and video chats come to life on an ultra-wide screen. Has a 2020 Qualcomm Snapdragon 662 processor, updated from the 2019 Qualcomm Snapdragon 665 in the moto g power 2020.Lag-free performance. Get more done without slowing down thanks to a speedy Qualcomm Snapdragon 662 processor. Water-repellent design3. Keep your phone safe from accidental spills and splashes. My UX Your phone. Your experience. With My UX, your phone works the way you want. Control it with simple gestures, customize your entertainment settings, and create a look that’s one in a million. The new My UX. It’s all you. Operating System: Android 10. Wi-Fi Hotspot Ready. Moto G Power (2021) offers Wi-fi hotspot connectivity in 2.4 GHz , 5 GHz for the best experience. In-box. Moto G Power (2021), 10W rapid Charger, USB Cable, Guides, SIM tool Rating: 4.4 of 5,644 Ratings in Amazon.

4.- Samsung Galaxy Note 20.

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S Pen & Samsung Notes. Pen precision meets PC power with S Pen & Samsung Notes. So responsive, it feels like you're using a real pen.  Intelligent Battery & Super Fast Charge. All-day intelligent battery learns how to optimize battery life, while super fast charging boosts your battery in minutes. Display & Gamming. Breathtaking screen refresh rate, adaptive Dynamic AMOLED 2X display, Galaxy 5G support & advanced processor, allow for a smooth gaming experience. Hyperfast Processor. Samsung’s fastest Note processor transforms your gaming and binging with less interruption. Point to Share. Share information directly with other compatible Samsung devices. Expandable Memory. Store all your photos and videos with up to 1TB of expandable memory with MicroSD card (sold separately). Power of 5G. Get next-level power for everything you love to do with Galaxy 5G: more sharing, more gaming, more experiences. Rating: 4.6 of 5,294 Ratings in Amazon.

5.- OnePlus Nord N10.

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5G.  Upgrade to the next stage of mobile technology, OnePlus Nord N10 5G packs an ultra-fast punch. Stay connected and enjoy the digital world without the long load times. Warp Charge 30T. Delivering a day’s power in 30 minutes, Warp Charge 30T combined with a massive battery gives you more time with your phone and less time charging. 90Hz Display. Sporting a display that refreshes 50% faster than standard 60Hz displays, the N10 5G display is super responsive and smooth. Quad Camera. Unleash your inner photographer with the Nord N10 5G’s 64MP main camera, or capture other details with the ultra-wide, macro, or monochrome lens for additional options, Big Performance, Big Storage. Massive amounts of RAM allows you play and run the highest-end games and most demanding apps. 128GB of included storage allows for the downloading and installation of all your favorite films, TV shows, games, photos, and videos Rating: 4.2 of 986 Ratings in Amazon.

6.- OnePlus Nord N100.

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Long-Lasting Power. Defeat battery anxiety with Nord N100’s massive 5000mAh battery, which keeps you powered all day long. Large Storage, Large Performance. Packed with 4GB of RAM and 64GB of built-in storage, Nord N100 has all the performance and storage needed to keep you entertained. Need more storage? Expand it up to 512GB. Massive Screen for Massive Entertainment. Immerse yourself into your favorite movies, TV shows, and video games with Nord N100’s massive 6.52” screen. Triple Camera System. Equipped with a 13MP main camera, a macro lens, and a specialized camera for portrait photos, Nord N100 makes it easy to capture every moment. Dual Stereo Speakers. Experience clear and immersive sound with stereo audio coming from both sides of Nord N100. Rating: 4.3 of 456 Ratings in Amazon.

7.- Samsung Galaxy Z Flip 3.

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Flex Your Best Angle. With Flex Mode, just unfold your mobile phone’s screen to your best angle for hands-free pics and video calls; Choose what you want to capture, set it down, stand back and shoot your best shot. A Camera That Goes Steady. Thanks to Samsung Galaxy Z Flip3’s Super Steady* feature, you can just set it down and strike a pose for picture perfect selfies. Ultra Compact, Ultra Cool. Show off your style game without the tradeoffs; With a compact design that unfolds, you don’t have to compromise screen size for your favorite outfit. Array of Colors. Whether you’re into sophisticated neutrals or vibrant tones, you’ll turn heads with every take; Complete your look with statement-making color choices of Phantom Black, Lavender, Green, or Cream. Fast Charging for Fast Living. Galaxy Z Flip3 smart phone charges fast so that all your moments last; There's a right time for downtime and a low battery signal, isn't it. All Your Notifications, Front and Center. Control your cellphone, even when it's folded shut; Galaxy Z Flip3 notifies you on the external cover screen, so you can view notifications and check the weather. One Screen, Two Apps. Launch two apps simultaneously, so you can take selfies while browsing Gallery, watch movies while texting friends, and shop multiple stores at once, on the go Rating: 4.3 of 387 Ratings in Amazon.

8.- Xiaomi Poco F3.

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Beastful performance with Snapdragon 870 CPU -8GB of LPDDR5 RAM and 256GB UFS 3.1. Enjoy the speed with 5G and Wi-Fi 6. LiquidCool 1.0 Plus technology -Large 4520mAh (typ) battery. AMOLED E4 screen with HDR10 +, 100% DCI-P3 and 1300 nits. Refresh rate up to 120Hz and touch sampling up to 360Hz -Powerful yet compact design. Professional Videos to Succeed with One-Click IA Cinema and 3-Microphone Array -Two high-end speakers and X-axis vibration motor Rating: 4.4 of 147 Ratings in Amazon.

9.- OnePlus 9 Pro.

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Hasselblad Camera for Mobile. Take your best shot with the OnePlus 9 Pro 5G’s Quad Camera system co-developed by Hasselblad, featuring a 48MP main camera, 50MP Ultra-Wide camera, 8MP telephoto camera, and 2MP monochrome lens. Qualcomm Snapdragon 888. Powered by the most powerful Snapdragon platform yet, the OnePlus 9 Pro 5G delivers fast and smooth performance across every app. A Day’s Power in 15 Minutes. Take wired charging to the next level with Warp Charge 65T, or charge wirelessly at ridiculous speeds with Warp Charge 50 Wireless (requires optional wireless charging pad). Next-Generation Fluid Display. The 6.7” QHD+ display delivers stunning visuals at 120 Hz with next-generation LTPO technology that conserves battery. Enhance your gaming experience with HyperTouch, a new technology that delivers more responsive gaming in select titles. Alexa Support. Simply by saying "Alexa", you can play music, make calls, hear the news, or check the weather wherever you are. Download the Alexa app, complete setup and just ask - and Alexa will respond instantly. If your device is not receiving text messages or experiencing error when making phone calls, you need to contact carriers' technical support to add CDMA Less feature. Rating: 4.1 of 127 Ratings in Amazon.

10.- Red Magic 6S Pro.

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Smoothest Mobile Screen. Gaming Phone with a 165Hz refresh rate, this 6.8inch AMOLED screen delivers beautiful HD visuals at up to 165 frames per second. Latest Chip and Larger Storage. Cell phone has latest Snapdragon 888 Plus. 16GB RAM and 256GB ROM provides not only a fun gaming experience and effects, also large storage space for game downloads. Ultra HD AI Quad Camera. Rear Camera are 64M, 8M, 2M and support 8K resolution at 30fps, 4K at 60fps, 1080P at 60fps, 720P at 30fps. The Wide Angle Respectively are 78.3, 120 and 78 degree. Multi-Dimensional Cooling System. The Gaming Phone incorporates new aerospace-grade phase change materials. Heat can be stored inside this material and released slowly. Network 5G, WIFI 6E and 5050mAh Battery: 5G is SA and NSA dual mode. WIFI 6E is up to 3.5Gbps. Cell Phone certified 30W charger, charge 0-100 in 65 minutes and supports up to 66W fast charging. Rating: 4.1 of 122 Ratings in Amazon.

11.- TCL 20 Pro.

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Unlocked Smartphone. Compatible with Verizon 5G<E, T-Mobile and AT&T LTE networks (without AT&T 5G). If your device doesn't work with Verizon, please restart the phone. If your device experiences an error when making calls on Verizon, your account may need to be provisioned to support “CDMA-less” devices with the assistance of Verizon’s technical support team or your account’s business representative. This device isn't compatible with CDMA networks-such as Sprint, Spectrum, Xfinity, etc.  The Power of 5G. Experience revolutionary speeds, faster streaming, quicker downloads, as well as enhanced AI features and hyper-accurate GPS with the Qualcomm Snapdragon 750G 5G Mobile processor. And 6GB of RAM provide effortlessly smooth performance. More sharing, more gaming, more experiences, never miss a beat. NXTVISION 2.0 Intelligent Display. Discover seamless visuals that go beyond the edge with the TCL 20 Pro 5G smartphone's 6.67-inch FHD+ NXTVISION AMOLED Dotch Display. Immerse yourself in a vivid, true-to-life visual world. The phone's AI visual enhancement intelligently detects your environment's lighting and automatically enhances brightness, color, clarity, and contrast for the best visuals. 48MP OIS Quad Camera. Capture sharp photos and videos with the 48MP Optical Image Stabilization (OIS) main camera. The 16MP ultra wide-angle, 5MP macro, and 2MP depth camera allow you to capture and explore more of the world around you. The 32MP front camera with dedicated RGB sensor accurately captures skin tone and natural lighting for stunning selfies. Keep More. 256GB ROM storage gives you enough space to keep all your apps, picture, videos, music and files without feeling the pinch. You can also expand up to 1TB with a microSD card (sold separately). the in-display fingerprint sensor and face unlock provide for fast and secure access. Rating: 4.2 of 106 Ratings in Amazon.

12.- Sony Xperia 1 III.

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World’s first smartphone with 120Hz 6.5” 4K HDR OLED display. World´s first smartphone with variable tele lens and Dual PD sensor. World’s first smartphone with 360 Reality Audio through its speakers. Triple camera with four focal lengths and Real-time AF tracking. Win with Game Enhancer’s custom display, audio and mic settings. Evolved Full-stage front facing stereo speakers – 40% louder. 360 Spatial Sound up-mixes stereo music into immersive experiences. Use as high-quality external monitor and live stream from your camera. IP65/68 water resistance and Corning Gorilla Glass Victus display. 5G connectivity and speed. Qualcomm Snapdragon 888 5G Mobile Platform Rating: 4.3 of 55 Ratings in Amazon.

13.- Apple iPhone 13 Pro Max.

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6.7-inch Super Retina XDR display with ProMotion for a faster, more responsive feel. Cinematic mode adds shallow depth of field and shifts focus automatically in your videos. Pro camera system with new 12MP Telephoto, Wide, and Ultra Wide cameras; LiDAR Scanner; 6x optical zoom range; macro photography; Photographic Styles, ProRes video, Smart HDR 4, Night mode, Apple ProRAW, 4K Dolby Vision HDR recording. 12MP TrueDepth front camera with Night mode, 4K Dolby Vision HDR recording. A15 Bionic chip for lightning-fast performance. Up to 28 hours of video playback, the best battery life ever in an iPhone. Durable design with Ceramic Shield. Industry-leading IP68 water resistance. 5G capable. iOS 15 packs new features to do more with iPhone than ever before Rating: 4.0 of 22 Ratings in Amazon.

14.- Google Pixel 6.

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Unlocked Android 5G phone gives you the flexibility to change carriers and choose your own data plan[1]; Pixel 6 is fast, smart, and secure, and adapts to you. The powerful Google Tensor processor is the first processor designed by Google and made for Pixel; it keeps your phone fast, your games rich, and your personal info safe. Pixel’s 50 megapixel rear camera captures 150% more light for photos with richer colors and more detail. Professional tools like Magic Eraser, Motion Mode, and Portrait Mode keep your photos sharp, accurate, and focused. Pixel’s fast charging all day battery adapts to you and saves power for apps you use most.  Privacy and protection are built into your Pixel smartphone; backed by the Titan M2 security chip, 5 years of updates, and the security core. New Pixel experience is more modern and intuitive, with colors that reflect your personal style; the At a Glance feature shows you the apps and info you need when you need it, like a boarding pass before a flight. Live Translate helps you translate live video captions, private chats and messages, and signs in up to 55 languages right on your cell phone; no apps, internet, or language courses required. New 6.4 inch Smooth Display is made with the toughest Gorilla Glass yet[11] to keep your smartphone protected; the high refresh rate means more responsive gaming and scrolling. Please refer to the product description section below for all applicable legal disclaimers denoted by the bracketed numbers in the preceding bullet points (e.g., [1], [2], etc.) Rating: 3.9 of 32 Ratings in Amazon.

15.- Realme GT.

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The phone supports Google Play and multiple languages. Support 4G service of the following operators. U.S. Cellular，Verizon Wireless，C spire，Boost Mobile，FreedomPop，Google Project Fi，GCI Wireless，AT&T，Cricket Wireless，H2O Wireless，Lycamobile，Ting (GSM)，T-Mobile，CTExce. Supports Verizon Wireless and AT&T's 5G n5 band.  Storage. 128GB 8 RAM. The octa-core mobile processor ensures fast operation while the 64GB internal memory gives you enough space to download and install everything you wish to have on your phone. Display. 6.43 inches, (91.7% screen-to-body ratio), made with a 6.43-inch Samsung Super AMOLED gaming screen, the realme GT perfectly blends a 120Hz ultra-high refresh rate and 360Hz Touch Sampling Rate with a 100% P3 wide color gamut and 98% NTSC color saturation to present colors just the way you see them in real life. Camera. The phone has a 64MP main camera, an 8MP ultra-wide-angle camera and a 2MP macro snapper. On the front is a 16MP camera for selfies and video calls. HDR, panoramic view. Massive 4500mAh Battery + 65W SuperDart Charge. You can use TikTok for 14.2 hours on realme GT’s colossal 4500mAh battery. Got only 5% left? No problem. Just use Super Power Saving Mode to keep yourself online. Worrying about low battery is a thing of the past. Rating: 3.5 of 9 Ratings in Amazon.