Google did not make any announcement of the Nexus 5 (2015) at the company's annual I/O developer conference, which kicked off on Thursday, May 28, but the unveiling of Android M at the event makes it likely that the next-generation Nexus device will come with all the new features to be introduced by the latest iteration of its mobile operating system.

Google has been holding talks with smartphone manufacturers, Huawei and LG, for building the Nexus 5 (2015). Google will reportedly introduce two Nexus phones this year made by LG and Huawei. According to recent reports, one Nexus phone referred to as the 2015 Nexus 5 and codenamed Angler will be manufactured by LG, while the second Nexus phone referred to as the 2015 Nexus 6 and codenamed Bullhead will be manufactured by Chinese vendor Huawei.

The new LG Angler will reportedly feature a 5.2-inch display and will be powered by Qualcomm's 64-bit, hexa-core Snapdragon 808 processor, which is also used in the latest flagship LG G4, along with a 2700mAh battery. On the other hand, the new Huawei Bullhead is speculated to feature a 5.7-inch display and will be powered by a Qualcomm Snapdragon 810 processor and pack a massive 3500mAh battery.

At Google's annual I/O developer conference, Google unveiled its Android M software for smartphones, tablets, watches and TVs that aims to improve security and privacy, while conserving battery life. Android M will bring new features such as fingerprint sensors for unlocking the device and logging into apps and online services, as well as fast-charging USB-C ports to significantly increase battery charging times on Android devices.

The new LG Angler and Huawei Bullhead are expected to include fingerprint sensors and USB-C ports, as Nexus handsets usually offer developers and users access to all the new features that Google includes in new Android releases. Google had announced Android L, which later came to be known as Android 5.0 Lollipop, at its Google I/O 2014 event before the release of the Motorola Nexus 6 in November. The announcement of Android M at the Google I/O 2015 means that both the new Nexus phones are likely to be released in October.