Refurbished iPhone 14 Pro (Unlocked) - Silver - 128 GB - Excellent
Refurbished iPhone 14 Pro (Unlocked)
Specifications
The iPhone 14 Pro is a flagship smartphone designed, developed, and marketed by Apple Inc. It features a 6.1-inch Super Retina XDR display with ProMotion technology, a triple-camera system with a 12MP main camera, a 12MP ultra-wide camera, and a 12MP telephoto camera, and is available in three storage options: 128GB, 256GB, and 512GB. It also features LiDAR technology for improved augmented reality experiences
THE PRODUCT IS REFURBISHED AND FULLY FUNCTIONAL.
- This pre-owned product has been professionally inspected, tested and cleaned by a qualified team.
Size and Weight
- Width: 2.81 inches (71.5 mm)
- Height: 5.81 inches (147.5 mm)
- Depth: 0.31 inch (7.85 mm)
- Weight: 7.27 ounces (206 grams)
Display
- Super Retina XDR display
- 6.1‑inch (diagonal) all‑screen OLED display
- 2556‑by‑1179-pixel resolution at 460 ppi
- Dynamic Island
- Always-On display
- ProMotion technology with adaptive refresh rates up to 120Hz
- HDR display
- True Tone
- Wide color (P3)
- Haptic Touch
- 2,000,000:1 contrast ratio (typical)
- 1000 nits max brightness (typical); 1600 nits peak brightness (HDR); 2000 nits peak brightness (outdoor)
- Fingerprint-resistant oleophobic coating
- Support for display of multiple languages and characters simultaneously
The iPhone 14 Pro display has rounded corners that follow a beautiful curved design, and these corners are within a standard rectangle. When measured as a standard rectangular shape, the screen is 6.12 inches diagonally (actual viewable area is less).
Splash, Water, and Dust Resistant3
- Rated IP68 (maximum depth of 6 meters up to 30 minutes) under IEC standard 60529
Chip
- A16 Bionic chip
- 6‑core CPU with 2 performance and 4 efficiency cores
- 5‑core GPU
- 16‑core Neural Engine
Camera
Pro camera system
- 48MP Main: 24 mm, ƒ/1.78 aperture, second-generation sensor-shift optical image stabilization, seven‑element lens, 100% Focus Pixels
- 12MP Ultra Wide: 13 mm, ƒ/2.2 aperture and 120° field of view, six‑element lens, 100% Focus Pixels
- 12MP 2x Telephoto (enabled by quad-pixel sensor): 48 mm, ƒ/1.78 aperture, second-generation sensor-shift optical image stabilization, seven‑element lens, 100% Focus Pixels
- 12MP 3x Telephoto: 77 mm, ƒ/2.8 aperture, optical image stabilization, six-element lens
- 3x optical zoom in, 2x optical zoom out; 6x optical zoom range; digital zoom up to 15x
- Sapphire crystal lens cover
- Adaptive True Tone flash
- Photonic Engine
- Deep Fusion
- Smart HDR 4
- Portrait mode with advanced bokeh and Depth Control
- Portrait Lighting with six effects (Natural, Studio, Contour, Stage, Stage Mono, High‑Key Mono)
- Night mode
- Night mode portraits enabled by LiDAR Scanner
- Panorama (up to 63MP)
- Photographic Styles
- Macro photography
- Apple ProRAW
- Wide color capture for photos and Live Photos
- Lens correction (Ultra Wide)
- Advanced red‑eye correction
- Auto image stabilization
- Burst mode
- Photo geotagging
- Image formats captured: HEIF, JPEG, and DNG
Video Recording
- 4K video recording at 24 fps, 25 fps, 30 fps, or 60 fps
- 1080p HD video recording at 25 fps, 30 fps, or 60 fps
- 720p HD video recording at 30 fps
- Cinematic mode up to 4K HDR at 30 fps
- Action mode up to 2.8K at 60 fps
- HDR video recording with Dolby Vision up to 4K at 60 fps
- ProRes video recording up to 4K at 30 fps (1080p at 30 fps for 128GB storage)
- Macro video recording, including slo-mo and time-lapse
- Slo‑mo video support for 1080p at 120 fps or 240 fps
- Time‑lapse video with stabilization
- Night mode Time-lapse
- QuickTake video
- Second‑generation sensor‑shift optical image stabilization for video (Main)
- Dual optical image stabilization for video (Main and Telephoto)
- 3x optical zoom in, 2x optical zoom out; 6x optical zoom range
- Digital zoom up to 9x
- Audio zoom
- True Tone flash
- Cinematic video stabilization (4K, 1080p, and 720p)
- Continuous autofocus video
- Take 8MP still photos while recording 4K video
- Playback zoom
- Video formats recorded: HEVC, H.264, and ProRes
- Stereo recording
TrueDepth Camera
- 12MP camera
- ƒ/1.9 aperture
- Autofocus with Focus Pixels
- Six‑element lens
- Retina Flash
- Photonic Engine
- Deep Fusion
- Smart HDR 4
- Portrait mode with advanced bokeh and Depth Control
- Portrait Lighting with six effects (Natural, Studio, Contour, Stage, Stage Mono, High‑Key Mono)
- Animoji and Memoji
- Night mode
- Photographic Styles
- Apple ProRAW
- Wide color capture for photos and Live Photos
- Lens correction
- Auto image stabilization
- Burst mode
- 4K video recording at 24 fps, 25 fps, 30 fps, or 60 fps
- 1080p HD video recording at 25 fps, 30 fps, or 60 fps
- Cinematic mode up to 4K HDR at 30 fps
- HDR video recording with Dolby Vision up to 4K at 60 fps
- ProRes video recording up to 4K at 30 fps (1080p at 30 fps for 128GB storage)
- Slo‑mo video support for 1080p at 120 fps
- Time‑lapse video with stabilization
- Night mode Time-lapse
- QuickTake video
- Cinematic video stabilization (4K, 1080p, and 720p)
Face ID
- Enabled by TrueDepth camera for facial recognition
Apple Pay
- Pay with your iPhone using Face ID in stores, within apps, and on the web
- Send and receive money in Messages with Apple Cash4
- Complete purchases made with Apple Pay on your Mac
- Pay for your ride using Express Transit5
Learn more about Apple Pay
Learn more about Apple Cash
Safety
- Emergency SOS via satellite6
- Crash Detection7
Cellular and Wireless
- Model A2650*
- 5G NR (Bands n1, n2, n3, n5, n7, n8, n12, n14, n20, n25, n26, n28, n29, n30, n38, n40, n41, n48, n53, n66, n70, n71, n77, n78 n79)
- 5G NR mmWave (Bands n258, n260, n261)
- FDD-LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 30, 32, 66, 71)
- TD-LTE (Bands 34, 38, 39, 40, 41, 42, 46, 48, 53)
- UMTS/HSPA+/DC-HSDPA (850, 900, 1700/2100, 1900, 2100 MHz)
- GSM/EDGE (850, 900, 1800, 1900 MHz)
- Model A2651*
- 5G NR (Bands n1, n2, n3, n5, n7, n8, n12, n14, n20, n25, n26, n28, n29, n30, n38, n40, n41, n48, n53, n66, n70, n71, n77, n78 n79)
- 5G NR mmWave (Bands n258, n260, n261)
- FDD-LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 30, 32, 66, 71)
- TD-LTE (Bands 34, 38, 39, 40, 41, 42, 46, 48, 53)
- UMTS/HSPA+/DC-HSDPA (850, 900, 1700/2100, 1900, 2100 MHz)
- GSM/EDGE (850, 900, 1800, 1900 MHz)
- All models
- 5G (sub‑6 GHz and mmWave) with 4x4 MIMO8
- Gigabit LTE with 4x4 MIMO and LAA8
- Wi‑Fi 6 (802.11ax) with 2x2 MIMO
- Bluetooth 5.3
- Ultra Wideband chip for spatial awareness
- NFC with reader mode
- Express Cards with power reserve
For details on 5G and LTE support, contact your carrier and see apple.com/iphone/cellular.
Location
- Precision dual-frequency GPS (GPS, GLONASS, Galileo, QZSS, and BeiDou)
- Digital compass
- Wi-Fi
- Cellular
- iBeacon microlocation
Video Calling
- FaceTime video calling over cellular or Wi‑Fi
- FaceTime HD (1080p) video calling over 5G or Wi‑Fi
- Share experiences like movies, TV, music, and other apps in a FaceTime call with SharePlay
- Screen sharing
- Portrait mode in FaceTime video
- Spatial Audio
- Voice Isolation and Wide Spectrum microphone modes
- Optical zoom with rear‑facing camera
Audio Calling
- FaceTime audio
- Voice over LTE (VoLTE)
- Wi‑Fi calling
- Share experiences like movies, TV, music, and other apps in a FaceTime call with SharePlay
- Screen sharing
- Spatial Audio
- Voice Isolation and Wide Spectrum microphone modes
Audio Playback
- Supported formats include AAC, MP3, Apple Lossless, FLAC, Dolby Digital, Dolby Digital Plus, and Dolby Atmos
- Spatial Audio playback
- User‑configurable maximum volume limit
Video Playback
- Supported formats include HEVC, H.264, and ProRes
- HDR with Dolby Vision, HDR10, and HLG
- Up to 4K HDR AirPlay for mirroring, photos, and video out to Apple TV (2nd generation or later) or AirPlay‑enabled smart TV
- Video mirroring and video out support: Up to 1080p through Lightning Digital AV Adapter and Lightning to VGA Adapter (adapters sold separately)11
Siri
- Use your voice to send messages, set reminders, and more
- Activate hands‑free with only your voice using “Hey Siri”
- Use your voice to run shortcuts from your favorite apps
External Buttons and Connectors
- Front camera
- Side button
- Lightning connector
- SIM tray (available on models purchased outside the U.S.)
- Volume buttons
- Ring/Silent switch
- Rear cameras
- Flash
- LiDAR Scanner
Power and Battery
- Video playback: Up to 23 hours
- Video playback (streamed): Up to 20 hours
- Audio playback: Up to 75 hours
- Built‑in rechargeable lithium‑ion battery
- MagSafe wireless charging up to 15W14
- Qi wireless charging up to 7.5W14
- Charging via USB to computer system or power adapter
- Fast-charge capable: Up to 50% charge in around 30 minutes15 with 20W adapter or higher (available separately)
MagSafe
- Wireless charging up to 15W14
- Magnet array
- Alignment magnet
- Accessory Identification NFC
- Magnetometer
Sensors
- Face ID
- LiDAR Scanner
- Barometer
- High dynamic range gyro
- High-g accelerometer
- Proximity sensor
- Dual ambient light sensors
Operating System
iOS
iOS is the world’s most personal and secure mobile operating system, packed with powerful features and designed to protect your privacy.
See what’s new in iOS
iPhone User Guide
Accessibility
Built-in accessibility features supporting vision, mobility, hearing, and cognitive disabilities help you get the most out of your iPhone.
Learn more about Accessibility
Features include:
- Voice Control
- VoiceOver
- Zoom
- Magnifier
- RTT and TTY support
- Siri and Dictation
- Type to Siri
- Switch Control
- Closed Captions
- AssistiveTouch
- Spoken Content
- Back Tap
Built-in Apps
- App Store
- Books
- Calculator
- Calendar
- Camera
- Clock
- Compass
- Contacts
- FaceTime
- Files
- Find My
- Fitness
- Freeform
- Health
- Home
- iTunes Store
- Magnifier
- Maps
- Measure
- Messages
- Music
- News
- Notes
- Phone
- Photos
- Podcasts
- Reminders
- Safari
- Settings
- Shortcuts
- Siri
- Stocks
- Tips
- Translate
- TV
- Voice Memos
- Wallet
- Watch
- Weather
Free Apps from Apple
Pages, Numbers, Keynote, iMovie, GarageBand, Clips, and Apple Store app are preinstalled.
- iMovie
- Pages
- Keynote
- Numbers
- GarageBand
- Apple Store
- Trailers
- iTunes Remote
- Clips
- Support
SIM Card
- Dual eSIM (two active eSIMs, stores eight or more eSIMs)16
- iPhone 14 Pro and iPhone 14 Pro Max use eSIM technology and are not compatible with physical SIM cards.
Learn more about eSIM on iPhone.
Learn more about traveling with eSIM
Rating for Hearing Aids
- M3, T4
Mail Attachment Support
- Viewable document types
.jpg, .tiff, .gif (images); .doc and .docx (Microsoft Word); .htm and .html (web pages); .key (Keynote); .numbers (Numbers); .pages (Pages); .pdf (Preview and Adobe Acrobat); .ppt and .pptx (Microsoft PowerPoint); .txt (text); .rtf (rich text format); .vcf (contact information); .xls and .xlsx (Microsoft Excel); .zip; .ics; .usdz (USDZ Universal)
System Requirements
- Apple ID (required for some features)
- Internet access17
- Syncing to a Mac or PC requires:
- macOS Catalina 10.15 or later using the Finder
- macOS El Capitan 10.11.6 through macOS Mojave 10.14.6 using iTunes 12.8 or later
- Windows 7 or later using iTunes 12.10.10 or later (free download from itunes.com/download)
Environmental Requirements
- Operating ambient temperature: 32° to 95° F (0° to 35° C)
- Nonoperating temperature: −4° to 113° F (−20° to 45° C)
- Relative humidity: 5% to 95% noncondensing
- Operating altitude: tested up to 10,000 feet (3000 m)
Languages
-
Language support
English (Australia, UK, U.S.), Chinese (Simplified, Traditional, Traditional – Hong Kong), French (Canada, France), German, Italian, Japanese, Korean, Spanish (Latin America, Spain), Arabic, Bulgarian, Catalan, Croatian, Czech, Danish, Dutch, Finnish, Greek, Hebrew, Hindi, Hungarian, Indonesian, Kazakh, Malay, Norwegian, Polish, Portuguese (Brazil, Portugal), Romanian, Russian, Slovak, Swedish, Thai, Turkish, Ukrainian, Vietnamese -
QuickType keyboard support
English (Australia, Canada, India, Japan, New Zealand, Singapore, South Africa, UK, U.S.), Chinese – Simplified (Handwriting, Pinyin QWERTY, Pinyin 10-Key, Shuangpin, Stroke), Chinese – Traditional (Cangjie, Handwriting, Pinyin QWERTY, Pinyin 10-Key, Shuangpin, Stroke, Sucheng, Zhuyin), French (Belgium, Canada, France, Switzerland), German (Austria, Germany, Switzerland), Italian, Japanese (Kana, Romaji), Korean (2-Set, 10-Key), Spanish (Latin America, Mexico, Spain), Ainu, Albanian, Amharic, Apache (Western), Arabic, Arabic (Najdi), Armenian, Assamese, Assyrian, Azerbaijani, Bangla, Belarusian, Bodo, Bulgarian, Burmese, Cantonese – Traditional (Cangjie, Handwriting, Phonetic, Stroke, Sucheng), Catalan, Cherokee, Croatian, Czech, Danish, Dhivehi, Dogri, Dutch, Dzongkha, Emoji, Estonian, Faroese, Filipino, Finnish, Flemish, Fula (Adlam), Georgian, Greek, Gujarati, Hawaiian, Hebrew, Hindi (Devanagari, Latin, Transliteration), Hungarian, Icelandic, Igbo, Indonesian, Irish Gaelic, Kannada, Kashmiri (Arabic, Devanagari), Kazakh, Khmer, Konkani (Devanagari), Kurdish (Arabic, Latin), Kyrgyz, Lao, Latvian, Lithuanian, Macedonian, Maithili, Malay (Arabic, Latin), Malayalam, Maltese, Manipuri (Bengali, Meetei Mayek), Māori, Marathi, Mongolian, Navajo, Nepali, Norwegian (Bokmål, Nynorsk), Odia, Pashto, Persian, Persian (Afghanistan), Polish, Portuguese (Brazil, Portugal), Punjabi, Rohingya, Romanian, Russian, Samoan, Sanskrit, Santali (Devanagari, Ol Chiki), Serbian (Cyrillic, Latin), Sindhi (Arabic, Devanagari), Sinhala, Slovak, Slovenian, Swahili, Swedish, Tajik, Tamil (Anjal, Tamil 99), Telugu, Thai, Tibetan, Tongan, Turkish, Turkmen, Ukrainian, Urdu, Uyghur, Uzbek (Arabic, Cyrillic, Latin), Vietnamese (Telex, VIQR, VNI), Welsh, Yiddish -
QuickType keyboard support with autocorrection
Arabic, Arabic (Najdi), Bangla, Bulgarian, Catalan, Cherokee, Chinese – Simplified (Pinyin QWERTY), Chinese – Traditional (Pinyin QWERTY), Chinese – Traditional (Zhuyin), Croatian, Czech, Danish, Dutch, English (Australia, Canada, India, Japan, New Zealand, Singapore, South Africa, UK, U.S.), Estonian, Filipino, Finnish, Dutch (Belgium), French (Belgium), French (Canada), French (France), French (Switzerland), German (Austria), German (Germany), German (Switzerland), Greek, Gujarati, Hawaiian, Hebrew, Hindi (Devanagari, Latin, Transliteration), Hungarian, Icelandic, Indonesian, Irish Gaelic, Italian, Japanese (Kana), Japanese (Romaji), Korean (2-Set, 10-Key), Latvian, Lithuanian, Macedonian, Malay, Marathi, Norwegian (Bokmål), Norwegian (Nynorsk), Persian, Persian (Afghanistan), Polish, Portuguese (Brazil), Portuguese (Portugal), Punjabi, Romanian, Russian, Serbian (Cyrillic), Serbian (Latin), Slovak, Slovenian, Spanish (Latin America), Spanish (Mexico), Spanish (Spain), Swedish, Tamil (Anjal), Tamil (Tamil 99), Telugu, Thai, Turkish, Ukrainian, Urdu, Vietnamese (Telex) -
QuickType keyboard support with predictive input
English (Australia, Canada, India, Japan, Singapore, South Africa, UK, U.S.), Chinese (Simplified, Traditional), French (Belgium, Canada, France, Switzerland), German (Austria, Germany, Switzerland), Italian, Japanese, Korean, Spanish (Latin America, Mexico, Spain), Arabic, Arabic (Najdi), Cantonese (Traditional), Dutch, Hindi (Devanagari, Latin), Portuguese (Brazil, Portugal), Russian, Swedish, Thai, Turkish, Vietnamese -
QuickType keyboard support with multilingual input
English (Australia, Canada, India, Japan, New Zealand, Singapore, South Africa, UK, U.S.), Chinese – Simplified (Pinyin), Chinese – Traditional (Pinyin), French (France), French (Belgium), French (Canada), French (Switzerland), German (Germany), German (Austria), German (Switzerland), Italian, Japanese (Romaji), Portuguese (Brazil), Portuguese (Portugal), Spanish (Spain), Spanish (Latin America), Spanish (Mexico), Dutch (Belgium), Dutch (Netherlands), Hindi (Latin), Vietnamese -
QuickType keyboard support with contextual suggestions
English (Australia, Canada, India, Japan, New Zealand, Singapore, South Africa, UK, U.S.), Chinese (Simplified), French (Belgium), French (Canada), French (France), French (Switzerland), German (Austria), German (Germany), German (Switzerland), Italian, Spanish (Latin America), Spanish (Mexico), Spanish (Spain), Arabic, Arabic (Najdi), Dutch (Belgium), Dutch (Netherlands), Hindi (Devanagari), Hindi (Latin), Russian, Swedish, Portuguese (Brazil), Turkish, Vietnamese -
QuickPath keyboard support
English (Australia, Canada, India, Japan, New Zealand, Singapore, South Africa, UK, U.S.), Chinese (Simplified Pinyin QWERTY), Chinese (Traditional Pinyin QWERTY), French (Canada), French (France), French (Switzerland), German (Austria), German (Germany), German (Switzerland), Italian, Spanish (Latin America), Spanish (Mexico), Spanish (Spain), Portuguese (Brazil), Portuguese (Portugal), Dutch (Belgium), Dutch (Netherlands), Swedish, Vietnamese -
Siri languages
English (Australia, Canada, India, Ireland, New Zealand, Singapore, South Africa, UK, U.S.), Spanish (Chile, Mexico, Spain, U.S.), French (Belgium, Canada, France, Switzerland), German (Austria, Germany, Switzerland), Italian (Italy, Switzerland), Japanese (Japan), Korean (Republic of Korea), Mandarin Chinese (China mainland, Taiwan), Cantonese (China mainland, Hong Kong), Arabic (Saudi Arabia, United Arab Emirates), Danish (Denmark), Dutch (Belgium, Netherlands), Finnish (Finland), Hebrew (Israel), Malay (Malaysia), Norwegian (Norway), Portuguese (Brazil), Russian (Russia), Swedish (Sweden), Thai (Thailand), Turkish (Türkiye) -
Dictation languages
English (Australia, Canada, India, Ireland, Malaysia, New Zealand, Philippines, Saudi Arabia, Singapore, South Africa, United Arab Emirates, UK, U.S.), Cantonese (China mainland, Hong Kong), Mandarin Chinese (China mainland, Taiwan), French (Belgium, Canada, France, Luxembourg, Switzerland), German (Austria, Germany, Switzerland), Italian (Italy, Switzerland), Japanese, Korean, Spanish (Chile, Colombia, Mexico, Spain, U.S.), Portuguese (Brazil, Portugal), Arabic (Kuwait, Qatar, Saudi Arabia, United Arab Emirates), Catalan, Croatian, Czech, Danish, Dutch (Belgium, Netherlands), Finnish, Greek, Hebrew, Hindi, Hungarian, Indonesian, Malay, Norwegian (Bokmål), Polish, Romanian, Russian, Shanghainese (China mainland), Slovak, Swedish, Thai, Turkish, Ukrainian, Vietnamese -
Monolingual dictionary support
English (UK, U.S.), Chinese (Simplified, Traditional, Traditional – Hong Kong), Danish, Dutch, French, German, Hebrew, Hindi, Italian, Japanese, Korean, Norwegian, Portuguese, Russian, Spanish, Swedish, Thai, Turkish -
Idiom dictionary support
Simplified Chinese, Traditional Chinese – English, Cantonese – English -
Bilingual dictionary support
Arabic – English, Bangla – English, Chinese (Simplified) – English, Chinese (Traditional) – English, Czech – English, Dutch – English, Finnish – English, French – English, French – German, German – English, Gujarati – English, Hindi – English, Hungarian – English, Indonesian – English, Italian – English, Japanese – English, Japanese – Chinese (Simplified), Korean – English, Polish – English, Portuguese – English, Russian – English, Spanish – English, Tamil – English, Telugu – English, Thai – English, Urdu – English, Vietnamese – English -
Thesaurus
English (UK, U.S.), Chinese (Simplified) -
Spell check
English (Australia, Canada, India, Japan, New Zealand, Singapore, South Africa, UK, U.S.), French (Belgium, Canada, France, Switzerland), German (Austria, Germany, Switzerland), Italian, Spanish (Latin America, Mexico, Spain), Arabic, Arabic (Najdi), Bulgarian, Czech, Danish, Dutch (Netherlands, Belgium), Finnish, Greek, Hindi (Devanagari), Hungarian, Irish Gaelic, Norwegian (Bokmål, Nynorsk), Polish, Portuguese (Brazil, Portugal), Punjabi, Romanian, Russian, Swedish, Telugu, Turkish, Vietnamese -
Apple Pay supported regions
Argentina, Armenia, Australia, Austria, Azerbaijan, Bahrain, Belarus, Belgium, Brazil, Bulgaria, Canada, China mainland,18 Colombia, Costa Rica, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Faroe Islands, Finland, France, Georgia, Germany, Greece, Greenland, Guernsey, Hong Kong, Hungary, Iceland, Ireland, Isle of Man, Israel, Italy, Japan, Jersey, Kazakhstan, Latvia, Liechtenstein, Lithuania, Luxembourg, Macao, Malaysia, Malta, Mexico, Moldova, Monaco, Montenegro, Netherlands, New Zealand, Norway, Palestine, Peru, Poland, Portugal, Qatar, Romania, Russia, San Marino, Saudi Arabia, Serbia, Singapore, Slovakia, Slovenia, South Africa, Spain, Sweden, Switzerland, Taiwan, UK, Ukraine, United Arab Emirates, U.S., Vatican City
In the Box
- iPhone 14 Pro
- USB‑C to Lightning Cable
- Documentation
Frequently asked quesitons
Conditions
Excellent Cosmetic: The device is nearly perfect, with minimal to no signs of wear. It looks almost new.
Functionality: The device is fully functional, with all features working perfectly. There are no defects or issues.
Learn more