Apple
Side-by-side technical data
Apple iPhone 4 vs Apple iPhone Duo
Compare up to four phones using typed, normalized technical data. Measurements stay numeric, capabilities stay boolean, and options stay comparable.
The verdict
Your pick: Apple iPhone Duo, ahead on Design & display, Performance & hardware, Camera, Connectivity and Battery & charging.
| Category | iPhone 4 | iPhone Duo |
|---|---|---|
| Design & display | 4.8 | 7.8 |
| Performance & hardware | 1.0 | 9.0 |
| Camera | 1.9 | 7.8 |
| Connectivity | 1.6 | 9.6 |
| Battery & charging | 0.7 | 7.4 |
Which one is for you?
Apple iPhone 4, if you care about…
- Weight
- 137 g
- against 254 g
- Body Thickness
- 9.3 mm
- against 11.3 mm
Apple iPhone Duo, if you care about…
- Battery Capacity
- 5,400 mAh
- against 1,420 mAh
- RAM Capacity
- 12 GB
- against 512 MB
- Wi-Fi Standards
- Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax), Wi-Fi 6E, Wi-Fi 7 (802.11be)
- against Wi-Fi 4 (802.11n)
- Display Technology
- OLED
- against IPS LCD
Specification comparison
Battery
| Specification | iPhone 4 | iPhone Duo |
|---|---|---|
| Battery Efficiency Rating | — | — |
| Battery Capacity | 1,420 mAh | 5,400 mAh Best value |
| Battery Type | Li-Polymer | Li-Ion |
| Fast Charge Power | 5 W | 40 W Best value |
| Battery Features | Battery Level Indicator, Rechargeable | Non-Removable, Rechargeable, Fast Charging, Wireless Charging, Battery Level Indicator |
| Battery Endurance | — | — |
| Wireless charging power | — | 25 W |
| Charge cycles | — | — |
| Talk time | 7 h | — |
| Standby time | 300 h | — |
| Music playback time | — | — |
Design
| Specification | iPhone 4 | iPhone Duo |
|---|---|---|
| Body Colors | Black, White | Black, White |
| Body Thickness | 9.3 mm Best value | 11.3 mm |
| Body Width | 58.6 mm | 117.8 mm |
| Body Height | 115.2 mm | 164.6 mm |
| Weight | 137 g Best value | 254 g |
| Usable Surface | 54 % | 90.4 % Best value |
| Body Materials | Glass, Stainless Steel | Glass, Titanium, Aluminium Alloy |
| Resistance Features | Scratch-Resistant Glass Back Panel | IP68, Stylus Support |
| Waterproof Depth | — | 6 m |
| Drop Resistance Class | — | — |
| Repairability Class | — | — |
| Foldable | No | Yes |
| Rugged Build | No | No |
| Drop Test Count | — | — |
| Unfolded thickness | — | 5.2 mm |
| QWERTY keyboard | — | — |
Performance
| Specification | iPhone 4 | iPhone Duo |
|---|---|---|
| Processor Model | Apple A4 | Apple A20 Pro |
| Processor Process Size | 45 nm | 2 nm Best value |
| Graphics GPU | PowerVR SGX535 | Apple GPU (7-core graphics) |
| Storage Type | — | NVMe |
| Maximum CPU Clock | 1 GHz | 3.5 GHz Best value |
| Maximum Storage Capacity | 32 GB | 2 TB Best value |
| AnTuTu Score | 4,152 | 3,010,000 |
| Geekbench 6 Single-Core | — | 4,459 |
| Geekbench 6 Multi-Core | — | 13,493 |
| CPU Description | 1.0 GHz Cortex-A8 | Hexa-core CPU with 2 high-performance cores and 4 efficiency cores. |
| Processor Type | Single-Core | Hexa-Core |
| 64-Bit Processor | — | Yes |
| RAM Capacity | 512 MB | 12 GB Best value |
| RAM Type | — | DDR5 |
| Expandable Storage | No | No |
| AnTuTu version | — | v11 |
| 3DMark Wild Life Extreme | — | — |
| Maximum memory card | — | — |
Sensors
| Specification | iPhone 4 | iPhone Duo |
|---|---|---|
| Fingerprint Sensor Placement | — | Side |
Display
| Specification | iPhone 4 | iPhone Duo |
|---|---|---|
| Display Aspect Ratio | 3:2 | 3:2 |
| Peak Display Brightness | — | 3,000 nits |
| Display Technology | IPS LCD | OLED Best value |
| Display Diagonal | 3.5″ | 7.6″ Best value |
| Display Horizontal Resolution | 640 px | 1,878 px Best value |
| Display Vertical Resolution | 960 px | 2,670 px Best value |
| Display Pixel Density | 330 ppi | 430 ppi Best value |
| Display Refresh Rate | 60 Hz | 120 Hz Best value |
| Touch Sampling Rate | — | — |
| Display Contrast Ratio | 1,242 :1 | 2,000,000 :1 Best value |
| Display Features | Gorilla Glass, Oleophobic Coating, IPS LCD, Touchscreen | HDR10, Dolby Vision, Always-On Display, LTPO, Variable Refresh Rate, Hole-Punch Notch, Capacitive Touch, Multi-Touch, Scratch Resistant, DCI-P3, Anti-reflective coating |
| Integrated Projector | No | No |
| Projector Brightness | — | — |
| Projector Horizontal Resolution | — | — |
| Projector Vertical Resolution | — | — |
| Cover display diagonal | — | 5.4″ |
| Cover display refresh rate | — | 120 Hz |
| Cover display peak brightness | — | 3,000 nits |
| Display colors | — | — |
Sensor
| Specification | iPhone 4 | iPhone Duo |
|---|---|---|
| Sensor Features | Accelerometer, Gyroscope, Proximity Sensor, Compass | Accelerometer, Gyroscope, Proximity Sensor, Compass, Barometer, Light Sensor, Cooling System, 3D face recognition |
Software
| Specification | iPhone 4 | iPhone Duo |
|---|---|---|
| Operating System | iOS 4 | iOS 27 |
| OS Family | iOS | iOS |
| OS Version | 4 | 27 Best value |
| OS Update Support | — | 7 years |
| Direct OS Updates | Yes | Yes |
| Google Services | — | — |
| Web browser | HTML5 | — |
| Java (J2ME) | — | — |
Connectivity
| Specification | iPhone 4 | iPhone Duo |
|---|---|---|
| SIM Configurations | Single Micro-SIM | Dual eSIM, Dual SIM Dual Standby Best value |
| Cellular Bands | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B850, 3G UMTS B900, 3G UMTS 1900, 3G UMTS 2100 | — |
| Cellular Technologies | GSM, HSPA | GSM, HSPA, LTE, 5G Best value |
| Wi-Fi Standards | Wi-Fi 4 (802.11n) | Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax), Wi-Fi 6E, Wi-Fi 7 (802.11be) Best value |
| Wi-Fi Features | Wi-Fi Hotspot | Tri-Band, Wi-Fi Hotspot, Dual Band, MIMO |
| Bluetooth Version | Bluetooth 2.1 | Bluetooth 6.0 Best value |
| Bluetooth Profiles | A2DP | A2DP, LE |
| Navigation Systems | GPS, A-GPS | GPS, A-GPS, GLONASS, Galileo, BeiDou, QZSS, NavIC Best value |
| Connectivity Features | 3.5 mm Audio Jack, USB 2.0 | UWB, Satellite Connectivity, NFC, USB Type-C, DisplayPort output, USB Mass Storage, USB Host 3.2, eSIM, VoLTE, VoWiFi, Tethering, OTA Sync, Computer Sync, USB Charging |
| USB Version | USB 2.0 | USB 3.2 Gen 2 Best value |
| SAR American Head | 1.17 W/kg | — |
| SAR American Body | 1.11 W/kg | — |
| SAR (EU) head | 0.93 W/kg | — |
| SAR (EU) body | 0.74 W/kg | — |
| Messaging | — | — |
Audio
| Specification | iPhone 4 | iPhone Duo |
|---|---|---|
| Microphone Count | 2 | — |
| Audio Features | A2DP, Loudspeaker | Stereo Speakers, Dolby Atmos, Noise-Cancellation Microphone, Three Microphones, A2DP, LE Best value |
| Alert types | — | — |
Technical
| Specification | iPhone 4 | iPhone Duo |
|---|---|---|
| EAN / GTIN | — | — |
| UPC | — | — |
| Launch price | — | 2,399 € |
| MPN | — | — |
| Launch price (USD) | — | — |
Features
| Specification | iPhone 4 | iPhone Duo |
|---|---|---|
| Built-in functions | — | — |
