Comparison

123SmartBMS vs Dolphin BMS

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

123SmartBMS

This app monitors and manages lithium battery packs, ensuring optimal condition and extended lifespan. It tracks cell voltages, temperatures, and currents, while balancing cells during charging. Connect via Bluetooth to view real-time battery status and control charging/discharging.

Highlights
  • Monitors cell voltages and temperatures
  • Tracks in- and outgoing currents
  • Balances cells during charging
  • Bluetooth connectivity for real-time data
  • Controls charge/discharge signals
  • Extends battery pack lifespan
Features
Read full description

123\SmartBMS is an easy to use yet advanced, modular BMS to keep your lithium batteries in perfect condition, increasing the lifespan of the battery pack. The system measures important data like cell voltages, cell temperatures and in- and outgoing currents. It also balances all cells to the same voltage during charging. The BMS supervises the whole battery pack and has two signal relays to indicate “allow to charge” and “allow to discharge”. These signal relays can control chargers and inverters with “enable”/”disable” signals or by connecting an energy efficient power relay to the signal relay. An example is the 123\SmartRelay. Easily connect your phone to the BMS using Bluetooth to see relevant information including state of charge, energy consumed, energy stored, in- and outgoing current, cell voltages and temperatures. With 123\SmartBMS, your battery pack is in safe hands.

About

Dolphin BMS

Features
Read full description

**Dolphin BMS – Intelligent Battery Management System** Dive into smarter energy management with Dolphin BMS. Our advanced battery management technology delivers reliable monitoring and protection for various energy storage applications, combining smart features with user-friendly operation. **Core Monitoring Features** - Real-time State of Charge (SOC) tracking - Individual cell voltage monitoring - Multi-point temperature sensing - Current flow measurement **Protection Systems** - Overvoltage and undervoltage protection - Overcurrent and short-circuit protection - Thermal runaway prevention - Multi-level safety mechanisms **Battery Optimization** - Active cell balancing technology - Smart charge/discharge management - Performance optimization algorithms - Energy efficiency enhancement **Connectivity & Communication** - Bluetooth 5.0 connectivity - CAN bus communication - Mobile app integration - Remote monitoring capability **Smart Features** - Real-time fault detection - Customizable protection parameters - Automatic sleep mode - Alert and notification system **Performance Tracking** - Cell voltage balance monitoring - Charge/discharge efficiency tracking - Temperature distribution analysis - Historical data recording **Technical Specifications** - High-accuracy measurement - Wide battery compatibility - Configurable settings - Secure data transmission - Firmware update support **Applications** - Residential energy storage - Marine applications - Electric vehicles - Solar power systems - Backup power solutions **Dolphin BMS – Smart Protection for Your Energy Journey** **Quality Assurance** - International safety standards compliance - Quality management system certified - Performance tested and verified

Screenshots

123SmartBMS4 screens
Dolphin BMS4 screens

Verdict

The call

The clearest difference is update cadence: Dolphin BMS at fortnightly against 123SmartBMS's monthly. Dolphin BMS also leads on iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

123SmartBMS ships an update monthly, Dolphin BMS fortnightly. The most recent releases landed on September 20, 2026 and September 8, 2026 respectively.

Scorecard2 real differences · 8 level
123SmartBMS versus Dolphin BMS: the parameters behind the verdict, then further details
Parameter123SmartBMSDolphin BMS
PriceFreeFree
Rating4.5 (21 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings21 — better—
Update frequencyMonthlyFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.013.0 — better
Further details — not scored
Size190 MB51 MB
Age rating4+17+
DeveloperAlbertronic B.V.惠州市佰铭诚电子有限公司

In-app purchases

None

123SmartBMS

No in-app purchases

None

Dolphin BMS

No in-app purchases

Questions

Is 123SmartBMS free?
123SmartBMS is free to download, with no in-app purchases.
Is Dolphin BMS free?
Dolphin BMS is free to download, with no in-app purchases.
Do 123SmartBMS or Dolphin BMS have ads?
Neither 123SmartBMS nor Dolphin BMS shows ads.
Which is updated more often, 123SmartBMS or Dolphin BMS?
123SmartBMS ships an update monthly, and Dolphin BMS fortnightly. Most recently, 123SmartBMS was updated on September 20, 2026 and Dolphin BMS on September 8, 2026.

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