With a weight of just 78g and a thickness of 19.2mm, the Siemens AL21 phone was unveiled in November 2005. Although it has a 1.5MB storage restriction and no expansion card slot, its display has a 130×130 pixel resolution. A 600mAh Li-Ion battery inside the device powers it, providing dependable performance for its time. Despite having modest specs compared to modern smartphones, the Siemens AL21 was a standout product in the era’s mobile phone industry.
Design and Display
The phone is slim and pocket-friendly in terms of form and display, measuring 86.8 x 45.8 x 19.2 mm and weighing only 78g. For connectivity, it has a Mini-SIM card slot. This device’s display is a TFT screen with 65K colour capability and a traditional 1:1 aspect ratio, with a resolution of 130 × 130 pixels.
Memory
The phone has a small 1.5MB of internal memory and no memory card port for adding more storage space, limiting its potential for memory and storage. However, a phonebook for contacts can be supported. Additionally, you may keep track of your communication history using the call records feature, which has the potential to save up to 10 dialled, 10 received, and 10 missed calls.
Sound and Features
The phone provides a practical audio experience with a built-in loudspeaker in terms of sound and functions. Users can customize their notification noises using the variety of alert options it offers, including vibration and a selection of 32 polyphonic ringtones. It utilizes a proprietary USB interface for connectivity. The phone supports SMS, EMS, and MMS messaging, allowing both text-based and multimedia communication.
Pre-installed games and the opportunity to download more are included as entertainment. The addition of Java capability (MIDP 1.0) also increases the device’s adaptability by enabling the installation of Java-based applications. To manage work and appointments effectively, the phone also has predictive text input and an organizer.
Battery
The phone has a 600mAh replaceable Li-Ion battery, which provides dependable power for operation. It has a standby time of up to 220 hours, which enables users to stay connected for extended periods of time without frequently needing to recharge.
The phone can support up to 5 hours of continuous talk time on a single charge, making it appropriate for daily communication needs. Furthermore, it comes in two fashionable colour choices, Red Temptation and Black Magic, giving users a choice of aesthetics to suit their preferences.
