iPhone 4: A Game-Changer in Smartphone Design

iPhone 4

English Full Name: iPhone 4

Product Category: Smartphone

Brand: Apple Inc.

Release Date: June 24, 2010 (United States); subsequent rollouts in global markets

Key Technical Specifications & Features (English):

Display: 3.5-inch Retina Display, 960 x 640 resolution, 326 ppi, IPS LCD panel, capacitive multi-touch
Processor: Apple A4 chip (1GHz single-core ARM Cortex-A8 CPU, PowerVR SGX535 GPU)
Memory & Storage: 512MB RAM; 8GB/16GB/32GB internal storage (non-expandable)
Camera System:
- Rear Camera: 5-megapixel sensor, LED flash, 720p HD video recording (30fps)
- Front Camera: 0.3-megapixel VGA sensor, supports video calling via FaceTime (1st generation)
Operating System: Initially shipped with iOS 4; upgradable up to iOS 7.1.2
Design: Unibody construction with glass front/back panels and stainless steel frame; dimensions 115.2 × 58.6 × 9.3 mm; weight 137g
Connectivity: GSM/CDMA dual-mode variants, Wi-Fi 802.11b/g/n, Bluetooth 2.1 + EDR, GPS/A-GPS, 3.5mm headphone jack, 30-pin Dock Connector
Battery: 1420 mAh lithium-ion battery; up to 7 hours of talk time, 300 hours of standby time
Key Innovations: First iPhone with Retina Display; introduced FaceTime; first Apple smartphone with a unibody glass-metal design

Market Significance: The iPhone 4 revolutionized smartphone display standards with its Retina Display and established Apple’s premium design language, becoming one of the most iconic smartphone models in history.