Section 4: User Interface
 - Gold will now be automatically picked up.
- Mana and Frenzy bars. No longer will we only see one type of bar for the classes, mage type classes get the Mana bar, and fighter type classes get a Frenzy bar.
- A new hotbar acts like a smaller version of the World of Warcraft hotbar, with additional slots for scrolls. - Blizzard stated that while they are upgrading it, the interface has been kept very similar to Diablo 2.
- Buffs in Diablo 3 will appear on the bottom left side of the screen.
- Mini Combat Log, when you attack an enemy, the damage you do will appear above the enemies head. Other information will also appear, such as when you block an enemies moves.
- Players can quickswap between skills using the mouse wheel or tab key.
- As stated before, the camera can be zoomed in, but not zoomed far out.
- When selecting a weapon, to make it easier to choose a new weapon for yourself, you will be able to see the weapon you currently have equipped, next to the weapon you are looking at. Whether this is the same with all equipment, it is not confirmed. Though it looks like this will be the case for all equipment.
- Weapon speed will be shown as "Attack per Second". Also there will be a calculated result for "Damage per Second" based on the damage and speed. With lightning damage having it's damage points ranging from 1 - x.
- Inventory: We can see room for 30 items. The new inventory system will be a bit similar to World of Warcraft where you will be able to carry variable sizes of bags. (There will be 4 grayed out slots for bags.) Items will take one inventory slot regardless of their size, and some of the items will be stackable. This will allow you to carry a lot more of the same item. Adding bags also allows you to carry many more items than ever before. (Note: Some gear icons do not look like they would on the actual player character.)
  Gear Slots:
- Head 
- Shoulders 
- Neck 
- Hands 
- Chest
- Leggings
- Waist
- Feet
- Finger R
- Finger L 
- Weapon 1 
- Weapon 2
 - Runes will be included, but will have a different system than Diablo 2.
- Gems, and Scrolls of Identify are back.
- The item rarity system of Diablo 2 is making a comeback as well.
- Throwing knives are back. - Elixrs are also in the game.
- Bags are included. Allowing you to store more items in each one, and carry up to 4 bags.
- The mini-map will be on the top right side of the screen, along with the name of the area that you are currently in right above it.
- NPC Portraits located top left of the UI as in Diablo 2.