Side-by-side technical data

HMD Arc vs HMD Key

Comparison between HMD Arc and HMD Key: camera, battery, fast charging, display, performance and colors, side by side. More phones from HMD.

The verdict

Your pick: HMD Arc, ahead on Performance & hardware, Camera, Connectivity and Battery & charging.

Category
Category Arc Key
Design & display 4.2 4.0
Performance & hardware 2.2 1.5
Camera 3.3 1.3
Connectivity 4.9 3.9
Battery & charging 5.1 3.5

Which one is for you?

HMD Arc, if you care about…

Battery Capacity
5,000 mAh
against 4,000 mAh
RAM Capacity
4 GB
against 2 GB
Bluetooth Version
Bluetooth 5.2
against Bluetooth 4.2
Maximum Storage Capacity
64 GB
against 32 GB

Specification comparison

Performance

Specification Arc Key
Processor Model Unisoc SC9863A Unisoc SC9832E
Processor Process Size 28 nm 28 nm
Graphics GPU PowerVR GE8322 Mali-T820 MP1
Storage Type eMMC 5.1 eMMC 5.1
Maximum CPU Clock 1.6 GHz Best value 1.4 GHz
Maximum Storage Capacity 64 GB Best value 32 GB
AnTuTu Score 154,110 —
Geekbench 6 Single-Core 164 —
Geekbench 6 Multi-Core 725 —
CPU Description Octa-core: 4 × Cortex-A55 at 1.6 GHz and 4 × Cortex-A55 at 1.2 GHz Quad-core 1.3 GHz Cortex-A53
Processor Type Octa-Core Quad-Core
64-Bit Processor Yes —
RAM Capacity 4 GB Best value 2 GB
RAM Type DDR4 Best value DDR3
Expandable Storage Yes Yes
AnTuTu version v10 —

Design

Specification Arc Key
Body Colors Black Black, Blue
Body Thickness 9 mm 9 mm
Body Width 76.9 mm 76.9 mm
Body Height 166.4 mm 166.4 mm
Weight 185.4 g 185.4 g
Usable Surface 80.2 % 80.2 %
Body Materials Plastic —
Resistance Features IP54 Best value IP52
Drop Resistance Class A —
Repairability Class B —
Drop Test Count 270 —

Battery

Specification Arc Key
Battery Efficiency Rating A —
Battery Capacity 5,000 mAh Best value 4,000 mAh
Battery Type Li-Polymer —
Fast Charge Power 10 W 10 W
Battery Features Non-Removable, Rechargeable, Battery Level Indicator, Fast Charging Fast Charging, Battery Level Indicator, Charger Included, Rechargeable
Charge cycles 800 —

Display

Specification Arc Key
Display Aspect Ratio 20:9 20:9
Display Technology IPS LCD IPS LCD
Peak Display Brightness 460 nits 460 nits
Display Diagonal 6.52″ 6.52″
Display Horizontal Resolution 576 px 576 px
Display Vertical Resolution 1,280 px 1,280 px
Display Pixel Density 215 ppi 215 ppi
Display Refresh Rate 60 Hz —
Display Features Water Drop Notch, Capacitive Touch, Multi-Touch, Frameless, Curved Glass IPS LCD, Capacitive Touch

Sensors

Specification Arc Key
Fingerprint Sensor Placement Side —

Sensor

Specification Arc Key
Sensor Features Fingerprint Sensor, Accelerometer, Proximity Sensor, Light Sensor Accelerometer, Proximity Sensor

Software

Specification Arc Key
Operating System Android 14 Android 14
OS Family Android Android
OS Version 14 14
OS Update Support 5 years —
Google Services Yes —

Connectivity

Specification Arc Key
SIM Configurations Dual Nano-SIM, Dual SIM Dual Standby Dual Nano-SIM
Cellular Bands 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B850, 3G UMTS B900, 3G UMTS 2100, 3G UMTS B1, 3G UMTS B3, 3G UMTS B5, 3G UMTS B8, 4G LTE B1, 4G LTE B3, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B20, 4G LTE B28A, 4G LTE B28B, 4G LTE B38, 4G LTE B40, 4G LTE B41 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B850, 3G UMTS B900, 3G UMTS 2100, 4G LTE B1, 4G LTE B3, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B20, LTE B28, 4G LTE B38, 4G LTE B40, 4G LTE B41
Cellular Technologies GSM, HSPA, UMTS, LTE GSM, HSPA, UMTS, LTE
Wi-Fi Standards Wi-Fi 4 (802.11n), Wi-Fi 802.11 b/g/n Wi-Fi 4 (802.11n), Wi-Fi 802.11 b/g/n
Wi-Fi Features Wi-Fi Hotspot, Wi-Fi 802.11 b/g/n Wi-Fi 802.11 b/g/n
Bluetooth Version Bluetooth 5.2 Best value Bluetooth 4.2
Bluetooth Profiles A2DP, LE A2DP, LE
Navigation Systems GPS, A-GPS, GLONASS, BeiDou, Galileo Best value GPS, Galileo, GLONASS, BeiDou
Connectivity Features USB Charging, USB Mass Storage, USB OTG, USB Host 2.0, USB Type-C, 3.5 mm Audio Jack, FM Radio, Computer Sync, OTA Sync, Tethering, VoLTE 3.5 mm Audio Jack, FM Radio, USB Type-C
USB Version USB Type-C USB Type-C
Max. download speed 300 Mbps —
Max. upload speed 150 Mbps —

Audio

Specification Arc Key
Microphone Count — 1
Audio Features A2DP, LE, Loudspeaker Loudspeaker
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