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EF51 Review, Price, Specs & Features (2025)

BenQ-Siemens • Released on , February

EF51 is one of the latest smartphones from BenQ-Siemens in 2025. This EF51 review covers all the key features, specifications, price, and expert analysis you need to know before buying. If you're looking for a powerful, affordable, and feature-rich phone, the EF51 could be your best choice in 2025.

The EF51 features a 2.2 inches, 40 x 40 mm, 15.6 cm2 (~35.7% screen-to-body ratio) display, 1.3 MP camera, 20MB storage, miniSD slot storage, and a 870 mAh battery, . Powered by a modern processor and running on Android, this device is designed for users who demand performance and reliability.

In this detailed EF51 review, you'll find the latest price, user reviews, expert opinions, and a comparison with other top BenQ-Siemens phones. Whether you're interested in the EF51 camera, battery life, storage or we've got you covered.

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EF51 - BenQ-Siemens smartphone
EF51 front view
EF51  alternate view

EF51 Specifications

  • Display: 2.2 inches, 40 x 40 mm, 15.6 cm2 (~35.7% screen-to-body ratio) screen for immersive viewing experience
  • Camera: 1.3 MP camera system for high-quality photography
  • Storage: 20MB storage, miniSD slot internal storage for apps and media
  • Battery: 870 mAh battery for all-day usage
1.3 MP
No video recorder
870 mAh

Network

Technology GSM
2G Bands GSM 900 / 1800 / 1900

Launch

Announced 2006, February
Status Discontinued

Body

Dimensions 89 x 49 x 18 mm (3.50 x 1.93 x 0.71 in)
Weight 95 g (3.35 oz)
SIM Mini-SIM

Display

Type TFT, 256K colors

Memory

Card slot miniSD
Internal 20MB

Sound

Loud Speaker No

Comms

WLAN No
Bluetooth 1.2, A2DP
Positioning No
Radio FM radio
USB Proprietary

Battery

Type Removable Li-Ion 870 mAh battery

MISC

Colors Flashy White, Black
Disclaimer: We cannot guarantee that the information on this page is 100% correct.

FAQ

Water resistance varies by model. Check the device specifications for IP rating details.

No, this product does not support 5G connectivity.

EF51 has no operating system.

No, this product does not support wireless charging.

The EF51 features a 870 mAh battery capacity.

The EF51 comes with a 1.3 MP main camera.

The EF51 features a 2.2 inches, 40 x 40 mm, 15.6 cm2 (~35.7% screen-to-body ratio) display. With 120 x 128 pixels (~80 ppi density) resolution for crisp and clear visuals. The TFT, 256K colors technology ensures vibrant colors and excellent viewing angles.

The EF51 is equipped with sufficient RAM for smooth multitasking and performance.

Expert Analysis

Our team of mobile technology experts has analyzed the EF51 specifications to help you understand how this device compares to other smartphones in its category. This comprehensive guide provides detailed insights into the phone's capabilities, performance potential, and suitability for different use cases.

Who Should Consider This Phone?

The EF51 is ideal for users who prioritize photography, ample storage, long battery life . Whether you're a casual user, content creator, or business professional, this device offers the features you need for modern smartphone usage.

Why Choose EF51?

The EF51 stands out in the competitive smartphone market with an impressive 2.2 inches, 40 x 40 mm, 15.6 cm2 (~35.7% screen-to-body ratio) display, an advanced 1.3 MP camera system, a long-lasting 870 mAh battery.

Why Buy EF51?

  • Long-lasting 870 mAh battery and fast charging support
  • High-resolution 1.3 MP camera for stunning photos and videos
  • Large 2.2 inches, 40 x 40 mm, 15.6 cm2 (~35.7% screen-to-body ratio) display for immersive viewing
  • Great for gaming, streaming, and everyday use

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