Created: 16 May 2012 · Last edited: 9 September 2026

The AQUOS PHONE SL IS15SH is a rather unusual smartphone from AU and Sharp's Summer 2012 collection. Its defining feature is the slide-out numeric keypad, allowing it to be used as a conventional touchscreen smartphone when closed, or more like a traditional mobile phone when the keypad is revealed. The “SL” designation stands for “SLIDER”.

It has a 3.7-inch QHD display with a resolution of 540 × 960 pixels. Sharp uses its New Mobile ASV LCD technology here. The phone is powered by a single-core Qualcomm Snapdragon MSM8655 running at 1.4 GHz, accompanied by 512 MB of RAM and 4 GB of built-in storage. Storage can be expanded with microSDHC cards of up to 32 GB.

The IS15SH features an 8 MP CMOS main camera capable of recording HD video, along with a 0.3 MP CMOS front-facing camera for video calls. It also includes a number of camera effects and features typical of Sharp's smartphones of the period.

Connectivity includes AU's Global Passport CDMA/GSM/GPRS roaming, Wi-Fi 802.11a/b/g/n, Bluetooth 3.0, infrared, GPS and NFC/FeliCa. Contrary to what might be expected from its relatively conventional appearance, it also supports One Seg digital TV and includes the usual Japanese mobile-phone features such as Osaifu-Keitai.

Water- and dust-resistance are also part of the package, with the IS15SH rated IPX5/IPX7 for water resistance and IP5X for dust resistance. This is particularly useful on a slider, where Sharp is trying to combine the convenience of a physical keypad with the increasingly standard ruggedness of contemporary Japanese smartphones. It is also a notable improvement over last season's IS14SH, which was neither water- nor dust-resistant.

The IS15SH measures 58 × 121 × 14.9 mm (W × H × D) and weighs 152 grams. It was available in Mint Blue, Cassis Pink and Dahlia Black. The phone was released on 6 July 2012.