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OHIY Concept 2 Smartphone Cradle 1098 for PM5 PM4 and vs Maximus Lung Trainer Device | VO2 Max Trainer for

Updated August 2026 — OHIY Concept 2 Smartphone Cradle 1098 for PM5 PM4 and wins on weight and size, Maximus Lung Trainer Device | VO2 Max Trainer for wins on resistance and price.

The Concept 2 Smartphone Cradle is a budget-friendly accessory for rowing enthusiasts, while the Maximus Lung Trainer Device offers advanced respiratory training features. Choose based on your fitness focus.

Why OHIY Concept 2 Smartphone Cradle 1098 for PM5 PM4 and is better

Price

Concept 2 is significantly cheaper at $15.95.

Specific Use

Designed specifically for rowing machines.

Simplicity

Easy to use with no complex features.

Why Maximus Lung Trainer Device | VO2 Max Trainer for is better

Functionality

Offers adjustable resistance for respiratory training.

Technology

Features patented DART technology.

Versatility

Can be used for various endurance training activities.

Overall score

OHIY Concept 2 Smartphone Cradle 1098 for PM5 PM4 and
70
Maximus Lung Trainer Device | VO2 Max Trainer for
85

Specifications

SpecOHIY Concept 2 Smartphone Cradle 1098 for PM5 PM4 andMaximus Lung Trainer Device | VO2 Max Trainer for
BrandOHIYMaximus
Sales Rank156029154476
MaterialPlasticPlastic
AdjustableNoYes
Use CaseRowingEndurance

Dimension comparison

OHIY Concept 2 Smartphone Cradle 1098 for PM5 PM4 andMaximus Lung Trainer Device | VO2 Max Trainer for

Overview of the Products

In this comparison, we will examine the Concept 2 Smartphone Cradle 1098 and the Maximus Lung Trainer Device. The Concept 2 Smartphone Cradle is priced at $15.95, while the Maximus Lung Trainer Device costs $59.00, making the smartphone cradle about 73% cheaper. Both products serve distinct purposes for fitness enthusiasts but target different aspects of physical training.

Purpose and Functionality

The Concept 2 Smartphone Cradle is designed to enhance the rowing experience by securely holding a smartphone on PM5, PM4, or PM3 monitors. This allows users to track their performance data while exercising. In contrast, the Maximus Lung Trainer Device focuses on respiratory training, providing a portable solution for improving lung capacity and VO2 max through adjustable resistance. While the cradle is specifically tailored for rowing machines, the lung trainer supports a broader range of endurance training activities.

Design and Build Quality

The Concept 2 Smartphone Cradle is a lightweight accessory that easily slides onto the top of the PM monitors. It accommodates smartphones ranging from 2.25 inches to 3.5 inches in width, making it versatile for various devices. On the other hand, the Maximus Lung Trainer is a compact device weighing only 1 ounce, featuring patented DART technology that allows users to adjust airflow resistance levels. While the smartphone cradle focuses on utility during rowing, the lung trainer emphasizes innovative technology for improving respiratory fitness.

Price Comparison

The Concept 2 Smartphone Cradle is priced at $15.95, while the Maximus Lung Trainer Device retails for $59.00. This significant price difference of about $43.05 highlights the varying investment levels required for each product. If you are on a budget or looking for a simple accessory to enhance your rowing experience, the smartphone cradle presents a compelling option. However, the Maximus lung trainer justifies its higher price with advanced features designed to support comprehensive respiratory training.

Target Audience

The Concept 2 Smartphone Cradle primarily targets indoor rowing machine users, particularly those who own PM5, PM4, or PM3 monitors. It caters to fitness enthusiasts looking to monitor their performance effectively. Conversely, the Maximus Lung Trainer Device appeals to a broader audience, including athletes engaged in various endurance sports who want to enhance their lung capacity and oxygen utilization. This product is ideal for anyone looking to improve their overall respiratory health and performance.

Performance and Effectiveness

The Concept 2 Smartphone Cradle enhances the rowing experience by allowing users to track their performance data effortlessly. This promotes focus on workout goals, making it an effective tool for those serious about their training. The Maximus Lung Trainer Device, with its flexible multi-level dual airflow resistance, enables users to tailor their respiratory training sessions. By progressively increasing resistance, users can challenge themselves and improve lung capacity over time, making it a highly effective tool for endurance training.

Sales Rankings

In terms of market presence, the Concept 2 Smartphone Cradle has a sales rank of 156,029, while the Maximus Lung Trainer Device is slightly better positioned with a sales rank of 154,476. Although both products rank similarly, the Maximus Lung Trainer's marginally higher position suggests a more favorable reception among consumers, possibly due to its innovative features and broader application in fitness training.

Which should you buy?

Choosing between the Concept 2 Smartphone Cradle and the Maximus Lung Trainer Device ultimately depends on your fitness needs. If your focus is on enhancing your indoor rowing experience with a budget-friendly accessory, the Concept 2 Smartphone Cradle is an excellent choice at $15.95. However, if you are looking for a comprehensive respiratory training device that can support various endurance activities, the Maximus Lung Trainer Device, priced at $59.00, offers advanced technology and customization options. Evaluate your training goals to make the best decision.