Rugged Handheld Computer


The all-new EF550 offers the larger touch surface of 5.45” with enhanced innovative features and form factor that provide
more huge value and productivity to enterprise frontline user environment.

Experience the ultimate rugged and performance of the EF550,
a product of Bluebird’s all cutting edge technology optimized for enterprise environment.

The Largest-in-class Display

The largest-in-class 5.85-inch touch surface (5.45-inch display) provides more quality information to the device users and at the same time, it enhances working condition with the best-in-class outdoor readability for users to read the screen even in bright sunlight.

Ultimate Rugged & Durability

Through Bluebird TankSmith® technology, EF550 is designed for the enterprise with the highest-in-class drop spec of 6 ft. (1.82m) and sealing up to IP68 to provide the ultimate durability and usability allowing use in environments exposed to water, humidity, or dust.

Faster, Wider Network BUT Less Power

EF550 has 2x2 Multiple-User Multiple Input Multiple Output (MU-MIMO) technology that makes possible for multiple devices communicate with access points simultaneously through pinpoint beamforming,
which leads to enhancement in Wi-Fi network speed, range, and capacity. And access point is the one who processes not the device, increasing device battery cycle time.

High-Capacity Smart Battery, Power for Hours

No need to worry about recharging while working! EF550 battery offers long working time during Internet browsing.
Safe as it is a hard-pack and stable battery operation with support of BOS™ PowerManager.
Hot Swap mode is available without running any application, ensuring task continuity without turning off the device or an application.

Enterprise Mobile Device Software Ecosystem BOS™

Bluebird BOS™ (Business Optimizing Solutions) provides various features optimized for use of enterprise device from app development, device deployment, to business performance management as an integrated solution system. With BOS™ you can implement integrated management for EF550 in an efficient way.


Dimensions 159.9 x 79 x 16.65 mm
Weight 200g
* Battery weight is not included in device weight.
Display Whole touch surface 5.85” (with navigation button)
5.45” HD+ (1440 x 720), TFT-IPS
OS Android 10; upgradeable to Android 14
Android 11
CPU 2.2 GHz Octa Core Processor (SD660)
Memory 4GB RAM / 32GB UFS Flash
4GB RAM / 64 or 128GB Flash (Optional)
Communication [WIRELESS LAN]
WiFi: IEEE 802.11 a/b/g/n/ac/d/h/i/r/k/v/w;
Wi-Fi™ certified;IPv4, IPv6, 2x2 MU-MIMO
WWAN: IEEE 802.11 a/b/g/n/ac /d/h/i/r/k/v/w;
Wi-Fi™ certified;IPv4, IPv6, 5GHz 2x2 MU-MIMO

Bluetooth: Bluetooth v5.0, BLE Class 2
Data Capture 1D&2D image
Camera :
Rear : 13 MP autofocus; f/2.0 aperture; flash LED, PDAF 48 MP (Optional)
Front : 5 MP fixed focus 2.0

ISO 14443 Type A and B;
FeliCa and ISO 15693 cards;
P2P mode and Card Emulation via Host.
Card Emulation via Host and UICC
Battery User Replaceable Standard Battery,
Li-Polymer 3.85V / 4350 mAh, 16.7Wh
User Replaceable Extended Battery,
Li-Polymer 3.85V / 6160 mAh, 23.71Wh
BOS™ PowerManager Station
Drop Spec Multiple 5 ft./1.5 m drop to concrete over
-10° C to 50° C (14° F to 122° F)
EN 62262 (IKO6)
Tumble Spec 1000 1.6 ft./0.5 m tumbles;
meets or exceeds IEC tumble specifications
* The above specification does not constitute an offer within the meaning of the law. The product specifications may vary depending on the version (sub-model) and configuration of the product.