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Martian Notifier vs OPTA SB-048

General
Brand

Martian

OPTA

Model

Notifier

SB-048

Box Contents

Smart Watch, Micro USB Cable, Warranty Card, User Manual

Design
Shape & Surface

Circular

Circular, Curved

Dimensions

43.2 x 43.2 x 12.7 mm

Weight

52 grams

25 grams

Changeable straps

Body material

Stainless Steel

Stainless Steel

Strap material

Rubber

Rubber

Interface

LED Indicator, Touch

Colours

Black, Red, White

Black

Clock Face

Analog

Digital

Display
Screen Size

1.0 Inch

Screen Resolution

16 x 96 pixels

240 x 240 pixels

Pixel Density (sharpness)

339 ppi

Display Technology

OLED

OLED

Screen Protection

, Scratch-resistant glass

Touch Screen

, Capacitive Touchscreen

, Capacitive Touchscreen, Multi-touch

Compatibility
Compatible OS

Android v2.3.3, iOS

Android v4.4, iOS

Compatible Devices

Apple iPhone 6, Apple iPhone Plus, Apple iPhone 5S, Apple iPhone 5C, Apple iPhone 5, Apple iPod Touch (5th Generation), Apple iPad Air, Apple iPad Mini, Apple iPad (3rd Generation)

Battery
Charging time

Up to 2 Hours

Capacity/Type

60 mAh, Li-Po

Battery life

Up to 5 Days

Up to 7 Days

Charging mode

via USB

via USB

Connectivity
Bluetooth

, v4.0

, v4.0, BLE

USB Connectivity

No

No

Sensors
Accelerometer

Motion

Pedometer

Notifications
Text Message

Email

Incoming Call

Alarm

Calendar Reminder

Facebook

Google Hangout

Instagram

Timer

Twitter

Smartphone Remote Features
Camera Shutter Control

Find My Phone

Activity Tracker
Calories Intake/ burned

Distance

Steps

Sleep quality

Hours Slept

Active Minutes

Heart Rate

Features
Water Resistance

, IP Certified IP68

Dust Resistance

Additional Features
Alarm Clock

Reminders

Stopwatch

User Ratings

★★★★★
★★★★★

1.8/5 based on 5 ratings