Ipad 4, WiFi + Cellular the latest IOS version, 10.3.3. Battery life 35hrs at 50% screen brightness, 41hrs at 10% screen brightness, 25hr at 100% screen brightness, Both the iPad Air and the iPad 4 have exactly the same quality Retina display measuring 9.7in with 2048x1536 resolution. Still, it's hard to complain, as Apple's Retina display remains among the best in the tablet market. 07 - Show Phone another number to reach me. The iPad functions as a complete media center, including a photo and video organizer and music player. capable of storing thousands of photos, days of music and dozens of high-definition movies. Software available through the App Store performs sophisticated editing for videos and photos taken with the iPad's high-definition camera; other apps serve as portable music studios, sequencing, mixing, editing and applying effects to audio files. In addition, you can use the iPad to read electronic editions of thousands of books, magazines and newspapers. The "Newsstand" app receives subscriptions of electronic periodicals automatically.
The built-in Safari browser and editions of Chrome, Firefox and Opera from the App Store give the iPad complete Web-browsing capabilities. Its large 9.7-inch diagonal screen size displays pages clearly; swiping and pinching finger gestures simplify scrolling through content. Web browsers on the iPad are full-featured applications, including multiple tabs, favorites, browsing history and automatic pop-up blockers. Safari includes a built-in "Reader" function that automatically simplifies article pages, removing ads and other graphical clutter and presenting you with easy-to-read content.
Text messaging and email apps for the iPad connect with your personal and business accounts and help organize your electronic correspondence. The email app interfaces with standard Simple Mail Transfer Protocol, or SMTP, email accounts, Microsoft Exchange, Apple's iCloud and others. You can set the iPad up as an email hub, managing messages from several accounts in one place. The app has a built-in document viewer for attachments such as PDFs, PowerPoint, Excel and Word files and other types in addition to JPEG, GIF and TIFF graphics. The "Messages" app, included as part of the iPad's standard software, works through the standard Short Messaging Service, or SMS, services as well as Apple's own iMessage system. If the sender and receiver both have iPhones, iPads or iPod Touch devices, iMessage routes texts through the Internet, saving credits on your mobile service plan.
Organizer and Planner
The iPad offers many apps for the mobile professional, including calendars, productivity managers and maps. The "Calendar" app includes alarms to remind you of appointments, and can share a group calendar through Microsoft Exchange and other services. Dozens of applications available through the App Store help you plan trips, track flights, hail taxis and communicate in foreign languages.
Social Media Manager
Internet-based social media are becoming more important by the day to businesses, as they keep you in touch with your customers and offer sophisticated ways to promote products and services. The iOS operating system that runs the iPad integrates with Twitter accounts, letting you post messages, photos and videos easily. The "Facebook" app, available as a free download, updates your Facebook account with text and pictures. THINK DIFFERENT