Here are some information about the Samsung Galaxy Tab A8 (Wi-Fi, 4GB RAM):

• It has a 10.5-inch WUXGA (1920 x 1200) display. 
• It is powered by an octa-core Unisoc Tiger T618 processor and has 4GB of RAM.
• It has 64GB of internal storage, which can be expanded up to 1TB using a microSD card.
• It has an 8MP rear camera and a 5MP front-facing camera.
• It runs on Android 11 with One UI 3.1.
• It has a 7040mAh battery that supports 15W fast charging.
• It is available in gray, silver, and pink gold colors.

The price of the Samsung Galaxy Tab A8 (Wi-Fi, 4GB RAM) in India starts at ₹19,999.

Here are some of the key features of the Samsung Galaxy Tab A8 (Wi-Fi, 4GB RAM):

• Large and immersive display: The 10.5-inch WUXGA display is perfect for watching movies, browsing the web, or playing games.
• Powerful processor: The octa-core Unisoc Tiger T618 processor provides plenty of power for everyday tasks and light gaming.
• Long battery life: The 7040mAh battery will easily last you a full day on a single charge.
• Expandable storage: With up to 1TB of expandable storage, you can keep all your photos, videos, and apps on your tablet.
• Sleek and stylish design: The Samsung Galaxy Tab A8 (Wi-Fi, 4GB RAM) is available in three stylish colors: gray, silver, and pink gold.

Here are some of the key differences between the Samsung Galaxy Tab A8 (Wi-Fi, 3GB RAM) and Samsung Galaxy Tab A8 (Wi-Fi, 4GB RAM):

• The Samsung Galaxy Tab A8 (Wi-Fi, 4GB RAM) has 4GB of RAM, while the Samsung Galaxy Tab A8 (Wi-Fi, 3GB RAM) has 3GB of RAM.
• The Samsung Galaxy Tab A8 (Wi-Fi, 4GB RAM) has 64GB of internal storage, while the Samsung Galaxy Tab A8 (Wi-Fi, 3GB RAM) has 32GB of internal storage.
• The Samsung Galaxy Tab A8 (Wi-Fi, 4GB RAM) is priced at ₹19,999, while the Samsung Galaxy Tab A8 (Wi-Fi, 3GB RAM) is priced at ₹17,999.

Overall, the Samsung Galaxy Tab A8 (Wi-Fi, 4GB RAM) is a slightly better tablet than the Samsung Galaxy Tab A8 (Wi-Fi, 3GB RAM). It has more RAM and storage, and it is also priced slightly higher. If you are looking for a tablet with a bit more power and storage, then the Samsung Galaxy Tab A8 (Wi-Fi, 4GB RAM) is a good option.