This fall, smartphone lovers will have a lot to look forward to with the expected IFA event on Aug. 29 and the rumored Apple iPhone 5 launch on Sept. 12. Gadget enthusiasts can also mark Sept. 5 on their calendars as the launch date of Motorola's new smartphone.

Motorola and Verizon recently sent invites for a press event on Sept. 5 in New York. This date collides with the Nokia World event scheduled for the same day. Many observers believe that Motorola may launch the rumored Droid Razr HD and Droid Razr Maxx HD at the event.

"We just heard from a very reliable source, deep in the trenches of the mobile battle ground, that Motorola is gearing up to launch its Razr HD and Razr Maxx HD smartphones in October, provided the handset maker is able to move enough current generation Razr/Razr Maxx devices between now and then," reports HotHardware.

Speculations suggest that both Motorola handsets will run on Android 4.0 and will offer identical hardware apart from the battery, where Maxx HD will be boosted with a bigger battery. Both smartphones are expected to sport a 720 x 1280-pixel HD display and will likely be powered by a 1.5GHz dual-core Qualcomm Snapdragon S4 processor, and include a 13-megapixel camera. The smartphones are anticipated to be available on Verizon's 4G LTE network. A leaked image of the phone suggests that the back plate of the device will have a diamond pattern.

With an array of new smartphones expected this fall, new smartphone buyers will face a dilemma regarding whether to pre-order or wait for all the smartphones to hit the shelves and then compare and buy.