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The Samsung Z1 is a smartphone created by Samsung Electronics. It was the first phone to use the Tizen operating system.

Samsung Z1
Codename KIRAN
Brand Samsung
Manufacturer Samsung Electronics
Series Z Series
Compatible networks 2.5G, 3G
First released 14 January 2015;
3 years ago
Availability by Region
  • India: January 2015
  • Bangladesh: February 2015
  • Sri Lanka: May 2015
Type Touchscreen smartphone
Form factor Slate
Dimensions 100.4 mm (3.95 in) H
63.2 mm (2.49 in) W
9.7 mm (0.38 in) D
Weight 112 g (4.0 oz)
Operating system Tizen 2.4[1]
System on chip Spreadtrum SC7727S[2]
CPU Dual-core 1.2 GHz Cortex A7
GPU Mali-400MP
Memory 768 MB RAM
Storage 4 GB
Removable storage Up to 64 GB microSDXC
Battery 1500 mAh Li-ion
Data inputs GPS
Display 4" (100mm) PLS TFT 480×800 WVGA (233 ppi)
Rear camera 3.15 megapixels
Front camera 0.3 MP
Connectivity Wi-Fi, Bluetooth 4, USB 2.0 (Micro-B port, USB charging)

It was released in India on January 2015, Bangladesh in February 2015 and Sri Lanka in May 2015.

The phone was succeeded by the Samsung Z3 in October 2015.




The Samsung Z1 features a 480×800 WVGA PLS TFT 4-inch display with a pixel density of 233 pixels-per-inch.

It has a 1.2 GHz dual-core ARM Cortex-A7 processor, 768 MB RAM, 4 GB of storage (with option for up to 64 GB of additional storage via microSDXC card) and a 1500 mAh battery.

The rear-facing camera is 3.15 megapixels with LED flash. The front-facing camera is 0.3 megapixels. The phone can record VGA (640×480) videos at 15fps.


The Samsung Z1 comes with Samsung's own mobile operating system Tizen. The UI was specifically designed for users who were upgrading from feature phones to smartphones.


By June 2015 Samsung sold 1 million units.[3]