According to the primary source [1], Apple has introduced the iPhone 16 series, which is the latest flagship lineup. This series comprises four models: iPhone 16, iPhone 16 Plus, iPhone 16 Pro, and iPhone 16 Pro Max. These models feature significant upgrades such as the new A18 chip, enhanced thermal management with graphene-based cooling, larger displays on Pro models, slimmer bezels, and improved MagSafe accessories. The iPhone 16 series also introduces Apple Intelligence, an AI-driven feature that enhances user interactions, and advanced camera capabilities, especially on the Pro models.

Additional sources [2] and [3] confirm that the iPhone 16 series is the newest flagship lineup, with Apple highlighting the design and technological advancements. The iPhone 16 Pro and Pro Max are built with durable titanium and include professional-grade camera controls, capable of 4K 120 fps Dolby Vision recording [4].

In summary, the iPhone 16 series is currently the newest iPhone lineup available on the market, offering four models with cutting-edge features and performance improvements over previous generations.