I think there might be some confusion. The latest flagship models from Samsung and Apple are:
* **Samsung Galaxy S23 Ultra** (not S26 Ultra)
* **Apple iPhone 14 Pro Max** (not iPhone 17 Pro Max)

The **Samsung Galaxy S23 Ultra** is a high-end Android smartphone that features:
* A large **6.8-inch Dynamic AMOLED display**
* A **Qualcomm Snapdragon 8 Gen 2** processor
* A **quad-camera setup** with a **200MP primary sensor**
* A **long-lasting 5000mAh battery** with **fast charging** capabilities

On the other hand, the **Apple iPhone 14 Pro Max** is a high-end iPhone that features:
* A **6.7-inch Super Retina XDR display**
* An **Apple A16 Bionic** processor
* A **quad-camera setup** with a **48MP primary sensor**
* A **long-lasting battery** with **fast charging** capabilities

As for the "S26 Ultra" and "iPhone 17 Pro Max", these models do not exist yet. Samsung and Apple typically release new flagship models on a yearly basis, so we can expect to see new models in the future, but these specific models are not available yet.

Let me know if you have any other questions or if there's anything else I can help you with.